JP2020532737A - Terminal device and its battery safety monitoring method and monitoring system - Google Patents

Abstract

Adapters, terminal devices and their battery safety monitoring methods and monitoring systems, the battery safety monitoring method is a battery voltage curve by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state. (S1), the step of obtaining the battery voltage drop for at least one period based on the battery voltage curve (S2), and the battery abnormality based on the battery voltage drop for at least one period. A step (S3) for determining whether or not the battery is used is provided. The battery safety monitoring method of the terminal device can monitor the battery abnormality by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and is potentially due to the battery abnormality. Can be immediately reminded and repaired to avoid any safety hazards.

Description

The present invention relates to the technical field of the terminal device, and more specifically to the adapter, the terminal device and its battery safety monitoring method and monitoring system.

A battery is a power source for a terminal device and supplies stable power to a terminal device such as a mobile phone for a long period of time. The first batteries used in mobile terminals were nickel-chrome batteries and nickel-metal hydride (Ni-MH) batteries. However, the capacities of nickel-chrome batteries and nickel-metal hydride batteries can no longer meet the power requirements as the screens of mobile terminals become larger and their functions are enhanced. Instead, lithium-ion batteries have many advantages, such as high energy density, which allows for lighter weight, higher capacity, faster charging and discharging, and compared to nickel-metal hydride and nickel-metal hydride batteries. Since there is no memory effect and elemental damage to the environment can be minimized, the conventional nickel-chrome battery and nickel-metal hydride battery will be gradually replaced.

Lithium-ion batteries have effectively solved the problem of battery capacity, but safety issues still exist. For example, if a lithium-ion battery is damaged and a short circuit occurs, it will generate heat inside the cell.If this heat generation is too fast, the battery may catch fire and the battery may explode, so to prevent accidents. , Battery safety needs to be monitored.

An object of the present invention is to solve at least one technical problem in the above-mentioned techniques to some extent. Therefore, a primary object of the present invention is to provide a method for monitoring the battery safety of a terminal device, which is to monitor the voltage drop of the battery for at least one period when the battery is in a stable state. Anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

A second object of the present invention is to provide a non-temporary computer-readable storage medium.

A third object of the present invention is to provide a terminal device.

A fourth object of the present invention is to provide an adapter.

A fifth object of the present invention is to provide a battery safety monitoring system for a terminal device.

A sixth object of the present invention is to provide another terminal device.

A seventh object of the present invention is to provide another adapter.

In order to achieve the above object, the battery safety monitoring method of the terminal device according to the first aspect of the present invention is a battery by acquiring the voltage of the battery in real time when the battery of the terminal device is in a stable state. Whether the battery is abnormal based on the steps to generate the voltage curve, the step to obtain the battery voltage drop for at least one period based on the battery voltage curve, and the battery voltage drop for at least one period. It is provided with a step to determine whether or not.

According to the battery safety monitoring method of the terminal device according to the embodiment of the present invention, when the battery of the terminal device is in a stable state, the battery voltage curve is generated by acquiring the battery voltage in real time, and then the battery voltage curve is generated. Based on the battery voltage curve, the battery voltage drop for at least one period is obtained, and based on the battery voltage drop for at least one period, it is determined whether the battery is abnormal or not. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

The battery safety monitoring method of the terminal device according to the above-described embodiment of the present invention further has the following additional technical features.
According to one embodiment of the present invention, when the battery is completely charged and the terminal device still maintains the charging connection state with the adapter, it is determined that the battery is in a stable state.

According to one embodiment of the present invention, when the terminal device is charged for the first time, it is possible to determine whether the battery is abnormal or not based on the voltage drop of the battery for at least one period.
Obtaining the standard value corresponding to each period,
Comparing the battery voltage drop for each period with the corresponding reference value,
If the voltage drop of the battery for any one period is greater than the corresponding reference value, the battery is judged to be abnormal.
To be equipped.

According to one embodiment of the present invention, when the number of times the terminal device is charged is greater than the preset number of times, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period. Is
To obtain a preset number of battery voltage drops for each period after a preset number of charges before the current charge, and to obtain a preset number of battery voltage drops for each period.
To obtain the reference value corresponding to each period by calculating the average value of the voltage drop of the preset number of batteries corresponding to each period.
Determining if the difference between the battery voltage drop for each period after current charging and the corresponding reference value is greater than the corresponding preset threshold,
If the difference between the battery voltage drop for any one period after the current charge and the corresponding reference value is greater than the corresponding preset threshold, then the battery is considered abnormal.
To be equipped.

According to one embodiment of the present invention, when the number of times the terminal device is charged is less than the preset number of times, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period. Is
To obtain the voltage drop of the battery for each period after each charge before the current charge, and to obtain the voltage drop of multiple batteries corresponding to each period.
To obtain the reference value corresponding to each period by calculating the average value of the voltage drops of multiple batteries corresponding to each period.
Determining if the difference between the battery voltage drop for each period after current charging and the corresponding reference value is greater than the corresponding preset threshold,
If the difference between the battery voltage drop for any one period after the current charge and the corresponding reference value is greater than the corresponding preset threshold, then the battery is considered abnormal.
To be equipped.

According to one embodiment of the present invention, when it is determined that the battery is abnormal, a reminder message indicating the abnormality of the battery is transmitted by the terminal device or the adapter.

According to one embodiment of the present invention, if it is determined that the battery is abnormal, the corresponding function of the terminal device is limited.

To achieve the above object, the second aspect of the present invention provides a non-temporary computer-readable storage medium that stores a computer program, and when the program is executed by a processor, the above battery safety monitoring method. To carry out.

According to the non-temporary computer-readable storage medium according to the embodiment of the present invention, by implementing the above battery safety monitoring method, when the battery is in a stable state, the voltage drop of the battery for at least one period can be achieved. By monitoring, battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

In order to achieve the above object, the terminal device according to the third aspect of the present invention includes a memory, a processor, and a battery safety monitoring program stored in the memory and executed by the processor. When the battery safety monitoring program of the terminal device is executed by the processor, the steps of the above battery safety monitoring method are realized.

According to the terminal device according to the embodiment of the present invention, by performing the steps of the battery safety monitoring method described above, when the battery is in a stable state, the voltage drop of the battery for at least one period is monitored. , Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

To achieve the above object, a fourth aspect of the present invention provides an adapter. When a charging connection is established between the adapter and the terminal device, bidirectional communication is performed between the adapter and the terminal device. The adapter includes a memory, a processor, and a battery safety monitoring program that is stored in the memory and can be executed by the processor. When the battery safety monitoring program of the adapter is executed by the processor, the above-mentioned battery safety monitoring method is performed. Perform the steps in.

According to an adapter according to an embodiment of the present invention, by performing the steps of the battery safety monitoring method described above, by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state. Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

In order to achieve the above object, the battery safety monitoring system of the terminal device according to the fifth aspect of the present invention is a battery by acquiring the voltage of the battery in real time when the battery of the terminal device is in a stable state. A battery based on a first acquisition module that generates a voltage curve, a second acquisition module that acquires a battery voltage drop for at least one period based on the battery voltage curve, and a battery voltage drop for at least one period. It is equipped with a safety monitoring module that determines whether or not is abnormal.

The battery safety monitoring system of the terminal device according to the embodiment of the present invention generates a battery voltage curve by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state by the first acquisition module. , The second acquisition module acquires the battery voltage drop for at least one period based on the battery voltage curve, and the safety monitoring module determines whether the battery is abnormal based on the battery voltage drop for at least one period. Judge whether or not. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

The battery safety monitoring system for the terminal device according to the embodiment of the present invention further has the following additional technical features.
According to one embodiment of the present invention, the safety monitoring module determines that the battery is in a stable state when the battery is fully charged and the terminal device still retains the charging connection state with the adapter.

According to one embodiment of the present invention, when the terminal device is charged for the first time, the safety monitoring module further acquires a reference value corresponding to each period, and corresponds to the voltage drop of the battery in each period. Is used to determine that the battery is abnormal if the voltage drop of the battery for any one period is greater than the corresponding reference value.

According to one embodiment of the present invention, if the number of times the terminal device is charged is greater than a preset number of times, the safety monitoring module will further acquire a second after a preset number of charges before the current charge. The module obtains the voltage drop of the batteries for each period and obtains the voltage drop of the preset number of batteries corresponding to each period; the average of the voltage drops of the preset number of batteries corresponding to each period. By calculating the values, a reference value corresponding to each period is obtained; the difference between the battery voltage drop and the corresponding reference value for each period after the current charge is greater than the corresponding preset threshold. Determining if; the battery is abnormal if the difference between the battery voltage drop for any one period after the current charge and the corresponding reference value is greater than the corresponding preset threshold. Used to judge.

According to one embodiment of the present invention, if the number of times the terminal device is charged is less than a preset number of times, the safety monitoring module will further be charged for each period by the second acquisition module after each charge before the current charge. Obtain the battery voltage drop and obtain the voltage drop of multiple batteries corresponding to each period; the reference corresponding to each period by calculating the average value of the voltage drops of multiple batteries corresponding to each period. Acquire a value; determine if the difference between the battery voltage drop for each period after the current charge and the corresponding reference value is greater than the corresponding preset threshold; optional after the current charge When the difference between the battery voltage drop and the corresponding reference value for one period is greater than the corresponding preset threshold, it is used to determine that the battery is abnormal.

According to one embodiment of the present invention, when the safety monitoring module determines that the battery is abnormal, the safety monitoring module controls a terminal device or an adapter to send a reminder message indicating the battery abnormality.

According to one embodiment of the present invention, if the battery is determined to be abnormal, the safety monitoring module limits the corresponding functions of the terminal device.

In order to achieve the above object, the sixth aspect of the present invention provides a terminal device including the battery safety monitoring system of the above terminal device.

According to the terminal device according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state. Anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

In order to achieve the above object, the seventh aspect of the present invention provides an adapter provided with a battery safety monitoring system for the terminal device described above.

According to the adapter according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state, thereby causing a battery abnormality. Can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 1 is a flowchart of a battery safety monitoring method for a terminal device according to an embodiment of the present invention. FIG. 2 is a schematic view showing a battery voltage curve according to an embodiment of the present invention. FIG. 3 is a schematic view showing a reminder message of a mobile terminal according to an embodiment of the present invention. FIG. 4 is a block diagram of a terminal device according to an embodiment of the present invention. FIG. 5 is a block diagram of an adapter according to an embodiment of the present invention. FIG. 6 is a block diagram of a battery safety monitoring system for a terminal device according to an embodiment of the present invention. FIG. 7 is a block diagram of a terminal device according to another embodiment of the present invention. FIG. 8 is a block diagram of an adapter according to another embodiment of the present invention.

Hereinafter, examples of the present invention will be described in detail with reference to the accompanying drawings. The same or similar reference numerals indicate the same or similar parts, or parts having the same or similar functions. The examples described below with reference to the accompanying drawings are exemplary and are used to interpret the invention and should not be understood to limit the invention.

Before explaining the battery safety monitoring method of the terminal device, the battery safety monitoring system and the battery safety monitoring method of the terminal device, or the terminal device and the adapter having the battery safety monitoring system according to the embodiment of the present invention, first, first. The structure of the battery in the terminal device and the potential safety hazard of the battery will be described.

For example, a lithium-ion battery mainly consists of a cell and a battery protection system. The cell is called the "heart" of the lithium-ion battery and contains the anode material, cathode material, electrolytes, isolation membrane and housing, and the outside of the cell is the battery protection system. The anode material of the cell is a lithium molecular material such as lithium manganate and lithium cobalt oxide. The anode material determines the energy of the battery. The cathode material is graphite. The isolation membrane is placed between the anode and cathode of the battery. For ease of understanding, the isolation membrane is like paper that is continuously folded in a small battery case and filled with anode material, cathode material and electrolyte. In the charging process, the lithium molecules in the anode material are activated, moved to the cathode under the action of an external electric field and stored in the gaps of the graphite carbon structure. As more lithium molecules move, more energy is stored. In the discharge process, the lithium ions in the cathode move to the anode, which becomes the first lithium molecule in the anode. Repeat the above steps to charge and discharge the battery.

Isolation membranes are primarily used to completely separate the cell anode and cathode materials. Direct contact between the anode material and the cathode material creates a short circuit inside the battery, creating a potential safety hazard. Therefore, the isolation membrane should not be too thin, as it tends to be damaged. However, manufacturers have higher energy densities because users have higher demands on terminal devices, for example, mobile terminals are lighter, thinner, their screens are larger, and battery life is longer. Start looking for a battery to have. For example, increasing the energy density of the battery by filling with more anode and cathode materials. However, when more anode and cathode materials are filled for the same volume, the isolation membrane becomes thinner. If the battery is damaged by an external impact or the like, the isolation membrane is likely to be damaged and a short circuit may occur.

As an example, when the battery is subjected to external mechanical damage such as compression, dropping, or piercing, the isolation membrane is so thin that the isolation membrane is easily damaged, resulting in a short circuit between the anode and cathode, that is, a short circuit inside the battery. Is likely to occur. As another example, lithium ions may accumulate at the anode and cathode during the charging and discharging process of the battery. When accumulation occurs, it forms crystalline branches (similar to what we have often seen forming crystals), and the crystalline branches gradually grow longer. During this process, crystal branches can pierce the isolation membrane, causing an internal short circuit in the battery. If a short circuit occurs while the battery is in use, a large amount of heat is generated inside the cell, which can evaporate the electrolyte in the cell. If the heat is generated very quickly, the vaporization process will be very fast accordingly, the internal pressure of the cell will rise, and when the internal pressure reaches a certain level, the housing will not withstand and the housing will crack. It can occur and cause an explosion. Encountering a fire can also cause a battery fire, thus causing a safety accident.

In addition, the higher the energy density, the thinner the isolation membrane, the more easily damaged the isolation membrane, causing safety accidents, and in addition, fast charging is also a major factor in the potential safety hazard of the battery. It is one of.

Fast charging, as the name implies, is the process of rapidly charging a rechargeable battery. For example, the battery charging process can include at least one of a trickle charging step, a constant current charging step and a constant voltage charging step. The trickle charge phase uses a current feedback loop to ensure that the current flowing through the battery during the trickle charge phase meets the magnitude of the battery's expected charge current (eg, the first charge current). For example, if the voltage is less than 3.0v, a charging current of 100mA (milliamperes) is used to precharge the battery. In the constant current charging phase, a current feedback loop is used so that the current flowing through the battery during the constant current charging phase meets the magnitude of the battery's expected charging current (eg, a second charging current greater than the first charging current). To do so. For example, with different batteries, the charging current ranges from 0.1 C (coulomb) to some coulombs (C is the battery capacity). Generally, in the constant current charging stage, a charging current of 0.1 C is used for charging in the normal charging mode, but a charging current exceeding 0.1 C is used for charging in the quick charging mode in a short time. Charging is complete. In the constant voltage charging stage, a voltage feedback loop is used to ensure that the voltage applied to the battery during the constant voltage charging stage meets the magnitude of the expected charging voltage of the battery. For example, if the battery voltage is equal to 4.2V, the constant voltage charging stage is entered. At this stage, the charging voltage is always 4.2V. When the battery is gradually fully charged, the charging current becomes smaller and smaller, and when the charging current is less than 100 mA, it can be determined that the battery is fully charged.

In the constant current charging stage, the charging current is large (for example, it can be 0.2C to 0.8C or can reach up to 1C), and the battery charging process is an electrochemical reaction process. It inevitably generates heat, and the larger the charging current, the larger the amount of heat generated in a short time. Damage to the isolation membrane is likely to cause a short circuit between the anode and cathode. When a short circuit occurs, more heat is generated, electrolyte evaporation occurs, the internal pressure of the cell rises, and when the internal pressure reaches a certain level, the housing cannot withstand and cracks occur in the housing. As a result, a safety accident such as an explosion may occur.

In other words, an internal short circuit in the battery can cause the battery to become abnormal, pose a potential safety hazard, and cause a safety accident while using the battery.

In addition, as the frequency of use of the battery increases, the flow path of lithium ions inside the battery is obstructed by an increasing number of obstacles until the battery cannot be used normally. Such substances that accumulate at the anode and cathode of the battery directly reduce the stability of the battery. For example, some free metal material produced after innumerable chemical reactions inside the battery accumulates in large quantities at the anode of the battery, while a small number of free metal material accumulates at the cathode, eventually both at the anode and the cathode. A metal coating is formed on all of the batteries. In addition, the electrolyte of the battery also damages the electrodes and the anode is constantly oxidized, making it difficult to replace lithium ions and reducing battery performance. For example, the charge and discharge capacity of a battery is significantly reduced after a period of time. For example, it takes a long time to fully charge the battery, and the battery can be completely discharged within a very short time, so that the battery cannot be used normally.

Therefore, regardless of whether the battery is aged due to normal use or an internal short circuit of the battery due to external damage or the like, it has a great influence on the normal use of the battery. In serious situations, it can also cause a safety accident. Therefore, it is necessary to determine whether or not the battery is abnormal. In order to effectively monitor whether the battery is abnormal, avoid battery safety hazards, and avoid safety accidents, this disclosure effectively determines whether the battery is abnormal. Provide a safety monitoring method that can be monitored.

Hereinafter, the battery safety monitoring method of the terminal device, the non-temporary computer-readable storage medium, the battery safety monitoring system of the terminal device, the terminal device, and the adapter according to the embodiment of the present invention will be described with reference to the accompanying drawings. ..

The "terminal device" used in the embodiment of the present invention can be a device connected by a wired line and / or a device that receives / transmits a communication signal via a wireless interface, but is not limited thereto. Absent. Wired lines include, for example, the public switched telephone network (PSTN), digital subscriber line (DSL), digital cables, direct connection cables, and / or other data connection lines or network connection lines. Can be. The wireless interface includes, for example, a cellular network, a wireless local area network (WLAN), a digital television network such as a digital video broadcasting handheld, a DVB-H network, a satellite network, an amplitude modulation frequency. It can communicate with an amplitude modulation-frequency modulation (AM-FM) broadcast transmitter and / or other communication terminal. Terminals configured to communicate via a wireless interface can be referred to as "wireless communication terminals," "wireless terminals," and / or "mobile terminals." Examples of mobile terminals include satellite or cellular telephones, personal communication systems (PCS) terminals (which can combine cellular radiotelephones with data processing, fax and data communication capabilities), and personal digital assistants (Persona Digital Assistant). , PDA) (Radiotelephone, pager, Internet / Internet access, web browsing, notebook, calendar and / or global positioning system) (radiotelephone), pager (pager), internet / intranet access (internet / internet access), web browsing It includes, but is not limited to, a system (which can be equipped with a global positioning system (GPS) receiver) and a regular laptop and / or handheld receiver, or other electronic device with radiotelephone capabilities. Absent.

FIG. 1 is a flowchart of a battery safety monitoring method for a terminal device according to an embodiment of the present invention. As shown in FIG. 1, the battery safety monitoring method of the terminal device according to the embodiment of the present invention includes the following steps.
S1, When the battery of the terminal device is in a stable state, the battery voltage curve is generated by acquiring the battery voltage in real time.

In one embodiment of the present invention, when the battery is fully charged and the terminal device still retains the charging connection state with the adapter, it is determined that the battery is in a stable state.

Specifically, the fact that the battery is fully charged and the terminal device still retains the charging connection with the adapter means that the battery of the current terminal device is fully charged and the adapter (charger, etc.) is attached to the terminal device. Means stay connected. In this case, the safety of the battery can be detected even if the background application of the terminal device is not closed. The reason is that when the display screen of the terminal device is lit and / or the application is launched, the adapter remains connected to the terminal device, so that the power consumption of the terminal device is completely supplied by the charger. Is.

For example, in general, when power is supplied using alternating current (AC) power, most devices cannot operate directly on AC (AC current / voltage). Instead, the AC (such as 220V) supplied by the AC power source is converted to stable direct current (DC) by the adapter, and then the DC is converted and charged by the conversion circuit of the device to be charged (such as a terminal device). Obtain the expected charging voltage and / or charging current of the battery of the device (terminal device, etc.).

As an example, the conversion circuit can be a charge management module such as a charge integrated circuit (IC) of a mobile terminal. In the process of charging the battery, the conversion circuit is used to manage the charging voltage and / or charging current of the battery. The conversion circuit functions as a voltage feedback module and / or a current feedback module, and manages the charging voltage and / or charging current of the battery. For example, a user usually connects a mobile terminal to an adapter before going to bed. At this time, the charging IC of the mobile terminal starts trickle charging of the battery, and then performs constant current charging and constant voltage charging of the battery. When the charging voltage reaches 4.2 V and the charging current is less than 100 mA, the charging IC determines that the battery is completely charged. At this time, since the adapter is not pulled out, voltage and current still exist at the input end of the conversion circuit. This indicates that the adapter is still connected to the terminal device. In this case, the charging IC launches an application related to the present invention and begins to detect the safety of the battery.

In another embodiment of the present invention, when the terminal device is in the screen-off standby state, it is determined that the battery is in a stable state.

"Screen off standby state" means that the display screen of the terminal device is in the off state, all background applications are closed, and only applications related to the present invention are started. That is, when detecting the safety of the battery, the terminal device is in a state where it consumes almost no power. That is, the battery is in a naturally discharged state. This makes it possible to avoid detection inaccuracy due to power consumption of the display screen or application.

As an example, most users choose a period when they will not be using the device (such as a specific period before dawn), close all background applications, switch the device display screen to the off state, and Launch an application related to the present invention to begin detecting battery safety. For example, the system of the terminal device can detect whether or not it is currently 1:00 am. If "Yes", it is detected whether or not the display screen of the terminal device is currently on (that is, lit). If yes, it indicates that the user is still using the terminal device and does not detect battery safety in this situation. If "No", the system automatically controls to close all background applications, launches applications related to the invention and begins to detect battery safety.

As another example, the user can manually set the terminal device to the screen-off standby state if it is required to detect the safety of the battery. For example, a user launches an application related to the present invention, then uses the application buttons to close all background applications on the system at once, and uses the power button to control the display screen to an off state. At this point, the application detects that all background applications on the system are closed, the display screen is off, and the application begins to detect battery safety.

As shown in FIG. 2, when detecting the safety of the battery of the terminal device, a relatively stable battery voltage curve is obtained by continuously monitoring the battery voltage. In the embodiments of the present invention, battery voltage detection can be achieved by conventional battery voltage detection circuits and will not be described in detail herein.

S2, Obtain a battery voltage drop for at least one period based on the battery voltage curve.

S3, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period.

Specifically, when the battery is in a stable state, the battery self-discharges. Battery self-discharge is due to the internal current of the battery, known as leakage current, and abnormal battery leakage current is higher than normal battery leakage current. That is, in the same period, the abnormal battery voltage drop is higher than the normal battery voltage drop. Therefore, one period of voltage drop or multiple periods of voltage drop in the battery voltage curve can be selected as a parameter representing the leakage current of the battery, and one period of voltage drop or multiple periods of voltage drop can be selected. Determine if the battery is abnormal based on the voltage drop.

For example, plug the adapter into the mobile device being tested (such as a mobile phone) and start charging the mobile device. After the mobile device is fully charged, do not remove the charger and observe the battery voltage drop. For example, a digital multimeter is used to record the battery voltage and record the data as shown in Table 1. Then, based on the data in Table 1, observe the effect of the power consumption of the main board on the voltage of the battery under the condition that the adapter is not removed.

The rated capacity of the battery is 2750 mAh and the rated voltage is 4.35 V. 1 #, 2 #, 3 # ,. .. .. 10 # indicates 10 different samples for testing.

As shown in Table 1, when the battery of the mobile terminal is in a normal state without pulling out the adapter, if the battery is left for a certain period of time (for example, 1h) after being fully charged, the amount of voltage change of the battery Can be maintained within 1 mV within a predetermined time (eg, 10 min).

Next, select a new battery, charge the battery to half its capacity (half charge), and then repeatedly drop the battery from a height of 1.8 m 10 times (6 times at the corners and 4 times at the surface). .. Check the heat generation status of the battery with an infrared thermal imager each time it falls. When the temperature change in the local region of the battery exceeds 5 ° C., the dropping of the battery is stopped. After that, the battery is put into the mobile terminal and fully charged, and as shown in Table 2, the voltage drop after the battery is dropped is started to be observed without pulling out the adapter.

The rated capacity of the battery is 2980 mAh, and the rated voltage is 4.35 V. 1 #, 2 #, 3 # ,. .. .. 10 # indicates 10 different samples for testing. In addition, the samples 4 # and 5 # clearly generate heat continuously after the drop experiment, and the voltage of the battery can only reach about 4 V, and even if it is charged, it cannot reach any higher voltage.

From Table 2, if the battery is dropped and damaged, if the adapter is left for a certain period of time (for example, 1h) after being fully charged without pulling out the adapter, it will be within a predetermined time (for example, 10min). It can be seen that the amount of change in the voltage of the battery is relatively clear. Therefore, based on the voltage change of the battery, it is possible to detect whether or not the battery is abnormal with a high probability, that is, whether or not the battery has a safety problem.

Specifically, in one embodiment, when the terminal device is charged for the first time, determining whether or not the battery is abnormal based on the voltage drop of the battery for at least one period corresponds to each period. Obtaining a reference value to be used, comparing the battery voltage drop for each period with the corresponding reference value, and if the battery voltage drop for any one period is greater than the corresponding reference value, the battery is considered abnormal. Be prepared to judge. The standard values corresponding to different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the corresponding standard values differ depending on the period, specifically, test by experiment and in advance. Can be acquired.

Specifically, as an example, when the terminal device is charged and discharged for the first time, it is possible to select a voltage drop for one period of the battery voltage curve to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop, set to period T1 = 30min, based on the battery model number and period T1. Acquire the corresponding reference value a = 8 mV. When the terminal device is charged and discharged for the first time, the abnormality of the battery starts to be detected 40 minutes after the terminal device is fully charged, and the voltage of the battery at this point is recorded as V _{40 min} . When 70 minutes have passed since the terminal device was fully charged, the battery voltage at this point is recorded as V _{70 min} , and it can be calculated that the voltage drop V1 = V _{40 min −} V _{70 min} in the period T1. Next, it is determined whether or not the voltage drop V1 in the period T1 is larger than the reference value a. When the voltage drop V1 in the period T1 is larger than the reference value a, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

The purpose of selecting the 40th min after the terminal device is fully charged and setting it as the starting point for calculating the voltage drop is to reduce the voltage of the battery to a stable state. In an actual application, the start point for calculating the voltage drop can be set to 1h, and is specifically selected according to the actual situation.

As another example, when the terminal device is charged and discharged for the first time, a voltage drop over multiple periods of the battery voltage curve can be selected to determine if the battery is abnormal. Hereinafter, it will be described in detail that the voltage drop for two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop. In order to quickly detect whether the battery is abnormal or not, the period T1 can be set to a small value such as 20 min or 30 min, while the other period T2 can be set to a large value such as 50 min or 70 min. The threshold for the other period T2 is n (usually less than or equal to 2/3 of the total duration of battery discharge). Further, the period T1 = 30 min and T2 = 50 min can be set, the corresponding reference value a = 8 mV is acquired based on the battery model number and the period T1, and the corresponding reference value a = 8 mV is obtained based on the battery model number and the period T2. The reference value b = 12 mV is acquired.

When the terminal device is charged and discharged for the first time, 40 minutes after the terminal device is fully charged, the battery abnormality starts to be detected, the voltage of the battery at this point is recorded as V _{40 min} , and the terminal device is fully charged. After 70 minutes have passed, the battery voltage at this point is recorded as V _{70 min} , and it can be calculated that the voltage drop V1 = V _{40 min −} V _{70 min} in the period T1. After that, when 120 minutes have passed since the terminal device was completely charged, the battery voltage at this point is recorded as V _{120 min} , and it can be calculated that the voltage drop K1 = V _{40 min} −V _{120 min} in the period T2. Finally, it is determined whether or not the voltage drop V1 in the period T1 is larger than the reference value a, and whether or not the voltage drop K1 in the period T2 is larger than the reference value b. If the voltage drop V1 in the period T1 is larger than the reference value a, or the voltage drop K1 in the period T2 is larger than the reference value b, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

According to one embodiment of the present invention, when the number of times the terminal device is charged is greater than the preset number of times, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period. To obtain the battery voltage drop for each period after a preset number of charges before the current charge, and to obtain the voltage drop for a preset number of batteries corresponding to each period, for each period. Obtaining the reference value corresponding to each period by calculating the average value of the voltage drop of the preset number of batteries corresponding to, and the reference value corresponding to the voltage drop of the battery in each period after the current charging. Determining if the difference between the values is greater than the corresponding preset threshold, the difference between the battery voltage drop for any one period after current charging and the corresponding reference value If it is larger than the corresponding preset threshold, the battery is determined to be abnormal.

The preset thresholds for different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the preset thresholds vary depending on the period, specifically, tested by experiment. Can be acquired in advance.

That is, in the embodiment of the present invention, the average voltage drop of a plurality of continuous charges and discharges can be selected and used as the reference value A, that is, A = (V _{x + 1} + V _{x + 2} + ... + V _{x + i} ) /. It is i, i indicates the number of times of charge / discharge, V _{x + 1} indicates the voltage drop acquired in the first charge / discharge process, V _{x + 2} indicates the voltage drop acquired in the second charge / discharge process, and V _{x + i} indicates the voltage drop acquired in the second charge / discharge process. The voltage drop acquired in the i-th charge / discharge process is shown. Next, the difference between the voltage drop V _{x + i + 1} in the (i + 1) th charge / discharge process and the reference value A is calculated and recorded as ΔV. Here, ΔV = V _{x + i + 1} −A, and it is determined whether or not ΔV is larger than the corresponding preset threshold value. If ΔV is greater than the corresponding preset threshold, the battery is determined to be abnormal.

Specifically, as an example, it is possible to determine whether or not the battery is abnormal by selecting a voltage drop for one period of the battery voltage curve each time the terminal device is charged or discharged. ..

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, since the number of times the terminal device has been charged has already reached a certain number, the reference value A is dynamically updated. That is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. The tenth charge / discharge process period T1 is a voltage drop. Next, the voltage drop V11 in the eleventh charge / discharge process is compared with the average voltage drop in the previous five charge / discharge processes. That is, first, the difference ΔV between the voltage drop V11 in the eleventh charge / discharge process and the reference value A is calculated, ΔV = V11−A, and ΔV is larger than the corresponding preset threshold value m. Judge whether or not. If ΔV is greater than the corresponding preset threshold m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period and adopting a dynamic algorithm when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and the potential due to the battery abnormality. Can be immediately reminded and repaired to avoid any safety hazards.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, the number of times the terminal device has been charged has already reached a certain number of times, so that the reference value A corresponding to the period T1 and the period All the reference values B corresponding to T2 are dynamically updated, that is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. It is the voltage drop of T1 during the tenth charge / discharge process, the reference value B = (K6 + K7 + K8 + K9 + K10) / 5, and K6, K7 ,. .. .. , K10 are the 6th and 7th, respectively. .. .. It is the voltage drop of T2 during the tenth charge / discharge process. Next, the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A are compared, and the voltage drop K11 of the eleventh charge / discharge process period T2 and the reference value B are compared. That is, first, the difference ΔV between the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A is calculated, ΔV = V11-A, and the eleventh charge / discharge process period T2. The difference ΔK between the voltage drop K11 and the reference value B is calculated, and ΔK = K11-B, and it is determined whether or not ΔV is larger than the preset threshold value m corresponding to the period T1. And, it is determined whether or not ΔK is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state and adopting a dynamic algorithm, it is possible to monitor whether the battery is abnormal or not, and due to the battery abnormality. It can be immediately reminded and repaired to avoid potential safety hazards. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring method of the terminal device according to the present invention can monitor a battery abnormality by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when the number of times the terminal device is charged is less than the preset number of times, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period. What you do is to get the battery voltage drop for each period after each charge before the current charge, and get the voltage drop for multiple batteries corresponding to each period, for multiple batteries corresponding to each period. Obtain the reference value corresponding to each period by calculating the average value of the voltage drop, and preset the difference between the battery voltage drop and the corresponding reference value in each period after the current charge. Determining if it is greater than the threshold given, if the difference between the battery voltage drop for any one period after current charging and the corresponding reference value is greater than the corresponding preset threshold. Be prepared to determine that the battery is abnormal.

That is, in the embodiment of the present invention, when the number of times of charging the terminal device is smaller than the preset number of times (for example, 5 times), the average voltage drop of all the previous charge / discharge processes is directly set as the reference value A. , Determine if the battery is abnormal.

Specifically, as an example, each time the terminal device is charged or discharged, a voltage drop for one period of the battery voltage curve can be selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 at this time, and V1, V2, and V3 are the terminal devices, respectively. This is the voltage drop of T1 during the first, second, and third charge / discharge processes. Next, the voltage drop V4 in the fourth charge / discharge process is compared with the average voltage drop in the previous three charge / discharge processes, and the difference between the voltage drop V4 in the fourth charge / discharge process and the reference value A is Δ. V is calculated, ΔV = V4-A, and it is determined whether or not ΔV is larger than the preset threshold m. When ΔV is larger than the preset threshold value m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 at this time, and V1, V2, and V3 are the terminal devices, respectively. The voltage drop of T1 during the first, second, and third charge / discharge processes, the reference value B = (K1 + K2 + K3) / 3, and K1, K2, and K3 are the first, second, and third terminals, respectively. The third is the voltage drop of T2 during the charge / discharge process. Next, the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A are compared, and the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B are compared. That is, first, the difference ΔV between the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A is calculated, ΔV = V4-A, and ΔV is preset corresponding to the period T1. It is determined whether or not it is larger than the threshold value m, and the difference ΔK between the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B is calculated, and ΔK = K4-B. , ΔK is determined whether or not is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring method of the terminal device according to the present invention can monitor a battery abnormality by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when it is determined that the battery is abnormal, a reminder message indicating the abnormality of the battery is transmitted by the terminal device or the adapter.

For example, if a battery is currently detected to be abnormal, the user needs to be notified. As an example, as shown in Fig. 3, "Battery safety message of terminal equipment (mobile phone, etc.): Customer, the battery is currently in an abnormal state. For safe use, *** You can remind users with the reminder message "Thank you for going to the customer service outlet for inspection and repair!". As another example, when reminding the user with the reminder message shown in FIG. 3, the user can be reminded by blinking the instruction lamp of the terminal device. For example, the instruction lamp is controlled to emit red light and frequently. Make it blink with. As yet another example, the user can be reminded via the voice function of the terminal device.

Generally, upon receiving the above reminder message, the user goes to the customer service outlet for inspection and repair. However, some users may not be aware of the seriousness of the problem when they receive the above reminder message. Therefore, the reminder message may be ignored and the terminal device may continue to be used normally. In this case, the user can be notified many times. For example, the user can be notified at least three times. After many notifications, the user can limit some functionality of the terminal device if it still does not handle the problem.

In the embodiment of the present invention, when the battery is abnormal, an instruction lamp, a voice module, a display screen, etc. can be installed in the adapter in order to send a reminder message to notify the user, which is a specific reminder method. Can refer to the reminding method of the terminal device, which is not described in detail here.

According to one embodiment of the present invention, if it is determined that the battery is abnormal, the corresponding function of the terminal device is limited.

That is, the abnormal grade can be determined according to the magnitude of the voltage drop of the battery. For example, the greater the voltage drop in the battery, the more severe the battery anomaly (eg, the more severe the damage and aging). Therefore, battery anomalies are divided into general grades, relatively serious grades, serious grades, and complete failure grades according to the battery voltage drop, and the corresponding functions of the terminal device according to the different anomalous grades. Can be restricted.

For example, in general, the lower the power consumption of a terminal device application, the less heat is generated during battery use. For example, if video chat is not performed and only the instant messaging (IM) application is launched, the battery power consumption is low and the battery heat generation is low, so the possibility of battery hazard is low. However, when the power consumption of an application such as watching a video or playing a mobile game is high, the power consumption of the battery is high and the amount of heat generated by the battery is large, so that a safety accident is likely to occur. Therefore, when it is determined that the battery is abnormal, if the abnormal grade is a general grade, the use of high power consumption applications such as video applications and game applications is prohibited. If the abnormal grade is a relatively serious grade or a serious grade, in order to prevent the occurrence of a safety accident, it is prohibited to start the entire system, and the display screen of the terminal device says "potential for the battery. Due to safety concerns, it is prohibited to boot the system. Please go to the *** customer service outlet for inspection and repair. Thank you for your cooperation! ”By displaying the message. Remind me to. If the abnormal grade is a complete failure grade, the battery will be disabled, the system will be powered off, and it will not be able to boot.

In addition, heat can also be generated during the battery charging process, especially in the fast-charged state, where more heat is generated in a short period of time, so if the battery is determined to be abnormal, quick charging of the battery is also prohibited. To do. In more serious situations, even charging the battery is prohibited to prevent the occurrence of safety accidents, and the display screen of the terminal device says "Battery charging is prohibited due to battery damage. *** Remind users by displaying the message "Please go to our Customer Service Outlet for inspection and repair. Thank you for your cooperation!"

As described above, according to the battery safety monitoring method of the terminal device according to the embodiment of the present invention, when the battery of the terminal device is in a stable state, the battery voltage curve is obtained by acquiring the battery voltage in real time. Generate. Based on the battery voltage curve, the battery voltage drop for at least one period is obtained, and based on the battery voltage drop for at least one period, it is determined whether or not the battery is abnormal. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

Further, an embodiment of the present invention provides a non-temporary computer-readable storage medium in which a computer program is stored, and when the program is executed by a processor, the above-mentioned battery safety monitoring method is carried out.

According to the non-temporary computer-readable storage medium according to the embodiment of the present invention, by implementing the above battery safety monitoring method, when the battery is in a stable state, the voltage drop of the battery for at least one period can be achieved. By monitoring, battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 4 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 4, the terminal device 100 includes a memory 110, a processor 120, and a battery safety monitoring program stored in the memory 110 and executed by the processor 120. When the battery safety monitoring program of the terminal device 100 is executed by the processor 120, the steps of the battery safety monitoring method described above are realized.

According to the terminal device according to the embodiment of the present invention, by realizing the steps of the battery safety monitoring method described above, by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state. , Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 5 is a block diagram of an adapter according to an embodiment of the present invention. As shown in FIG. 5, when a charging connection is established between the adapter 200 and the terminal device 100, the adapter 200 and the terminal device 100 perform two-way communication. The adapter 200 includes a memory 210, a processor 220, and a battery safety monitoring program stored in the memory 210 and running on the processor 220. When the battery safety monitoring program of the adapter 200 is executed by the processor 220, the steps of the battery safety monitoring method described above are realized.

According to the adapter according to the embodiment of the present invention, by realizing the steps of the battery safety monitoring method described above, when the battery is in a stable state, the voltage drop of the battery for at least one period is monitored. Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 6 is a block diagram of a battery safety monitoring system for a terminal device according to an embodiment of the present invention. As shown in FIG. 6, the battery safety monitoring system 300 of the terminal device includes a first acquisition module 310, a second acquisition module 320, and a safety monitoring module 330.

The first acquisition module 310 is used to generate a battery voltage curve by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state. The second acquisition module 320 is used to acquire a battery voltage drop for at least one period based on the battery voltage curve. The safety monitoring module 330 is used to determine if the battery is abnormal based on the voltage drop of the battery for at least one period.

According to one embodiment of the invention, the safety monitoring module 330 determines that the battery is in a stable state when the battery is fully charged and the terminal device still retains the charging connection state with the adapter.

Specifically, the fact that the battery is fully charged and the terminal device still retains the charging connection with the adapter means that the battery of the current terminal device is fully charged and the adapter (charger, etc.) is attached to the terminal device. Means stay connected. In this case, the safety of the battery can be detected even if the background application of the terminal device is not closed. The reason is that when the display screen of the terminal device is lit and / or the application is launched, the adapter remains connected to the terminal device, so that the power consumption of the terminal device is completely supplied by the charger. Is.

For example, in general, when power is supplied using alternating current (AC) power, most devices cannot operate directly on AC (AC current / voltage). Instead, the AC (such as 220V) supplied by the AC power source is converted to stable direct current (DC) by the adapter, and then the DC is converted and charged by the conversion circuit of the device to be charged (such as a terminal device). Obtain the expected charging voltage and / or charging current of the battery of the device (terminal device, etc.).

As an example, the conversion circuit can be a charge management module such as a charge integrated circuit (IC) of a mobile terminal. In the process of charging the battery, the conversion circuit is used to manage the charging voltage and / or charging current of the battery. The conversion circuit functions as a voltage feedback module and / or a current feedback module, and manages the charging voltage and / or charging current of the battery. For example, a user usually connects a mobile terminal to an adapter before going to bed. At this time, the charging IC of the mobile terminal starts trickle charging of the battery, and then performs constant current charging and constant voltage charging of the battery. When the charging voltage reaches 4.2 V and the charging current is less than 100 mA, the charging IC determines that the battery is completely charged. At this time, since the adapter is not pulled out, voltage and current still exist at the input end of the conversion circuit. This indicates that the adapter is still connected to the terminal device. In this case, the charging IC sends such a state to the safety monitoring module 330, and the safety monitoring module 330 determines that the battery is in a stable state.

The safety monitoring module 330 can determine whether or not the battery is currently in a stable state based on the charging voltage and charging current of the battery and the voltage and current at the input end of the conversion circuit. Based on the above, the state of the battery can be directly acquired by the charging IC.

In another embodiment of the invention, the safety monitoring module 330 determines that the battery is in a stable state when the terminal device is in the screen-off standby state.

"Screen off standby state" means that the display screen of the terminal device is in the off state, all background applications are closed, and only the battery safety monitoring system of the present invention is started. That is, when detecting the safety of the battery, the terminal device is in a state where it consumes almost no power. That is, the battery is in a naturally discharged state. This makes it possible to avoid detection inaccuracy due to power consumption of the display screen or application.

As an example, most users choose a period of non-use of the device (such as a specific period before dawn), close all background applications, switch the device display screen off, and The battery safety monitoring system of the present invention is activated to start detecting the safety of the battery. For example, the safety monitoring module 330 of the battery safety monitoring system can detect whether or not it is currently 1:00 am. If "Yes", it is detected whether or not the display screen of the terminal device is currently on (that is, lit). If yes, it indicates that the user is still using the terminal device and does not detect battery safety in this situation. If "No", the Safety Monitoring Module 330 will automatically control to close all background applications and begin to detect battery safety.

As another example, the user can manually set the terminal device to the screen-off standby state if it is required to detect the safety of the battery. For example, the user activates the battery safety monitoring system of the present invention, then uses the system buttons to close all background applications on the system at once, and uses the power button to control the display screen to the off state. To do. At this point, the battery safety monitoring system will detect that all background applications on the system are closed and the display screen is off, and the battery safety monitoring system will begin to detect battery safety. ..

As shown in FIG. 2, when detecting the safety of the battery of the terminal device, first, a relatively stable battery voltage curve is obtained by continuously monitoring the battery voltage by the first acquisition module 110. Acquire. The second acquisition module 320 then acquires a battery voltage drop for at least one period based on the battery voltage curve. Finally, the safety monitoring module 330 determines if the battery is abnormal based on the voltage drop of the battery for at least one period.

Specifically, according to one embodiment of the present invention, when the terminal device is charged for the first time, the safety monitoring module 330 further acquires a reference value corresponding to each period, and the voltage of the battery in each period. It is used to compare the drop and the corresponding reference value and determine that the battery is abnormal if the voltage drop of the battery for any one period is greater than the corresponding reference value. The standard values corresponding to different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the corresponding standard values differ depending on the period, specifically, test by experiment and in advance. Can be acquired.

Specifically, as an example, when the terminal device is charged and discharged for the first time, it is possible to select a voltage drop for one period of the battery voltage curve to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop, set to period T1 = 30min, based on the battery model number and period T1. Acquire the corresponding reference value a = 8 mV. When the terminal device is charged and discharged for the first time, the abnormality of the battery starts to be detected 40 minutes after the terminal device is fully charged, and the second acquisition module 120 records the voltage of the battery at this time as V _{40 min} . When 70 minutes have passed since the terminal device was completely charged, the second acquisition module 120 records the voltage of the battery at this time as V _{70 min} , and can calculate that the voltage drop V1 = V _{40 min −} V _{70 min} in the period T1. Next, the safety monitoring module 330 determines whether or not the voltage drop V1 in the period T1 is larger than the reference value a. When the voltage drop V1 in the period T1 is larger than the reference value a, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

The purpose of selecting the 40th min after the terminal device is fully charged and setting it as the starting point for calculating the voltage drop is to reduce the voltage of the battery to a stable state. In an actual application, the start point for calculating the voltage drop can be set to 1h, and is specifically selected according to the actual situation.

As another example, when the terminal device is charged and discharged for the first time, a voltage drop over multiple periods of the battery voltage curve can be selected to determine if the battery is abnormal. Hereinafter, it will be described in detail that the voltage drop for two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop. In order to quickly detect whether the battery is abnormal or not, the period T1 can be set to a small value such as 20 min or 30 min, while the other period T2 can be set to a large value such as 50 min or 70 min. The threshold for the other period T2 is n (usually less than or equal to 2/3 of the total duration of battery discharge). Further, the period T1 = 30 min and T2 = 50 min can be set, the corresponding reference value a = 8 mV is obtained based on the battery model number and the period T1, and the corresponding reference value a = 8 mV is obtained based on the battery model number and the duration T2. The reference value b = 12 mV to be used is obtained.

When the terminal device is charged and discharged for the first time, 40 minutes after the terminal device is fully charged, the battery abnormality starts to be detected, and the second acquisition module 120 records the voltage of the battery at this point as V _{40 min} , and the terminal device When 70 minutes have passed since the battery was completely charged, the second acquisition module 120 records the voltage of the battery at this time as V _{70 min} , and can calculate that the voltage drop V1 = V _{40 min −} V _{70 min} in the period T1. After that, when 120 minutes have passed since the terminal device was completely charged, the second acquisition module 120 records the voltage of the battery at this time as V _{120 min} , and calculates that the voltage drop K1 = V _{40 min} −V _{120 min} in the period T2. it can. Finally, the safety monitoring module 330 determines whether the voltage drop V1 in the period T1 is larger than the reference value a, and determines whether the voltage drop K1 in the period T2 is larger than the reference value b. If the voltage drop V1 in the period T1 is larger than the reference value a, or the voltage drop K1 in the period T2 is larger than the reference value b, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

According to one embodiment of the present invention, when the number of times the terminal device is charged is greater than the preset number of times, the safety monitoring module 330 is further preset by the second acquisition module 320 before the current charge. After a number of charges, a battery voltage drop for each period is acquired, a preset number of battery voltage drops corresponding to each period is obtained, and a preset number of battery voltages corresponding to each period are obtained. By calculating the average value of the drop, the reference value corresponding to each period is obtained, and the difference between the voltage drop of the battery in each period after the current charge and the corresponding reference value is set in advance. Determining if it is greater than the threshold and if the difference between the battery voltage drop for any one period after current charging and the corresponding reference value is greater than the corresponding preset threshold, the battery is abnormal. It is used to determine that.

The preset thresholds for different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the preset thresholds vary depending on the period, specifically, tested by experiment. Can be acquired in advance.

That is, in the embodiment of the present invention, the average voltage drop of a plurality of continuous charges and discharges can be selected and used as the reference value A, that is, A = (V _{x + 1} + V _{x + 2} + ... + V _{x + i} ) /. It is i, i indicates the number of times of charge / discharge, V _{x + 1} indicates the voltage drop acquired in the first charge / discharge process, V _{x + 2} indicates the voltage drop acquired in the second charge / discharge process, and V _{x + i} indicates the voltage drop acquired in the second charge / discharge process. The voltage drop acquired in the i-th charge / discharge process is shown. Next, the difference between the voltage drop V _{x + i + 1} in the (i + 1) th charge / discharge process and the reference value A is calculated and recorded as ΔV. Here, ΔV = V _{x + i + 1} −A, and it is determined whether or not ΔV is larger than the corresponding preset threshold value. If ΔV is greater than the corresponding preset threshold, the battery is determined to be abnormal.

Specifically, as an example, it is possible to determine whether or not the battery is abnormal by selecting a voltage drop for one period of the battery voltage curve each time the terminal device is charged or discharged. ..

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, since the number of times the terminal device has been charged has already reached a certain number, the reference value A is dynamically updated. That is, at this time, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 acquired by the second acquisition module 120, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. The tenth charge / discharge process period T1 is a voltage drop. Next, the safety monitoring module 330 compares the voltage drop V11 in the eleventh charge / discharge process with the average voltage drop in the previous five charge / discharge processes. That is, first, the difference ΔV between the voltage drop V11 in the eleventh charge / discharge process and the reference value A is calculated, ΔV = V11−A, and ΔV is larger than the corresponding preset threshold value m. Judge whether or not. If ΔV is greater than the corresponding preset threshold m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period and adopting a dynamic algorithm when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and the potential due to the battery abnormality. Can be immediately reminded and repaired to avoid any safety hazards.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, the number of times the terminal device has been charged has already reached a certain number of times, so that the reference value A corresponding to the period T1 and the period All the reference values B corresponding to T2 are dynamically updated, that is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 acquired by the second acquisition module 120 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th terminals of the terminal device, respectively. .. .. It is the voltage drop of T1 during the tenth charge / discharge process, the reference value B = (K6 + K7 + K8 + K9 + K10) / 5, and K6, K7 ,. .. .. , K10 are the 6th and 7th terminals of the terminal device, respectively. .. .. It is the voltage drop of T2 during the tenth charge / discharge process. Next, the safety monitoring module 330 compares the voltage drop V11 of the eleventh charge / discharge process period T1 with the reference value A, and sets the voltage drop K11 and the reference value B of the eleventh charge / discharge process period T2. Compare. That is, first, the difference ΔV between the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A is calculated, ΔV = V11-A, and the eleventh charge / discharge process period T2. The difference ΔK between the voltage drop K11 and the reference value B is calculated, and ΔK = K11-B, and it is determined whether or not ΔV is larger than the preset threshold value m corresponding to the period T1. And, it is determined whether or not ΔK is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state and adopting a dynamic algorithm, it is possible to monitor whether the battery is abnormal or not, and due to the battery abnormality. It can be immediately reminded and repaired to avoid potential safety hazards. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring system of the terminal device according to the present invention can monitor the abnormality of the battery by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when the number of times the terminal device is charged is less than the preset number of times, the safety monitoring module 330 is further charged by the second acquisition module 320 to each charge before the current charge. After that, by acquiring the battery voltage drop for each period, acquiring the voltage drops of the multiple batteries corresponding to each period, and calculating the average value of the voltage drops of the multiple batteries corresponding to each period, each Obtain the reference value corresponding to the period, determine whether the difference between the battery voltage drop and the corresponding reference value for each period after the current charge is greater than the corresponding preset threshold, and now If the difference between the voltage drop of the battery for any one period after charging and the corresponding reference value is greater than the corresponding preset threshold, it is used to determine that the battery is abnormal.

That is, in the embodiment of the present invention, when the number of times of charging the terminal device is smaller than the preset number of times (for example, 5 times), the average voltage drop of all the previous charge / discharge processes is directly set as the reference value A. , Determine if the battery is abnormal.

Specifically, as an example, each time the terminal device is charged or discharged, a voltage drop for one period of the battery voltage curve can be selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 acquired by the second acquisition module 120, and V1, V2, V3. Is the voltage drop of the period T1 of the first, second, and third charge / discharge processes of the terminal device, respectively. Next, the safety monitoring module 330 compares the voltage drop V4 in the fourth charge / discharge process with the average voltage drop in the previous three charge / discharge processes, and the voltage drop V4 in the fourth charge / discharge process and the reference value. The difference ΔV with A is calculated, ΔV = V4-A, and it is determined whether or not ΔV is larger than the preset threshold m. When ΔV is larger than the preset threshold value m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 acquired by the second acquisition module 120 at this time, and V1, V2 and V3 are voltage drops of the period T1 of the first, second and third charge / discharge processes of the terminal device, respectively, and the reference value B = (K1 + K2 + K3) / 3, and K1, K2 and K3 are respectively. This is the voltage drop of T2 during the first, second, and third charge / discharge processes of the terminal device. Next, the safety monitoring module 330 compares the voltage drop V4 of the fourth charge / discharge process period T1 with the reference value A, and sets the voltage drop K4 and the reference value B of the fourth charge / discharge process period T2. Compare. That is, first, the difference ΔV between the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A is calculated, ΔV = V4-A, and ΔV is preset corresponding to the period T1. It is determined whether or not it is larger than the threshold value m, and the difference ΔK between the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B is calculated, and ΔK = K4-B. , ΔK is determined whether or not is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring system of the terminal device according to the present invention can monitor the abnormality of the battery by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when it is determined that the battery is abnormal, the safety monitoring module 330 controls the terminal device or the adapter to transmit a reminder message indicating the abnormality of the battery.

For example, if a battery is currently detected to be abnormal, the user needs to be notified. As an example, as shown in FIG. 3, the safety monitoring module 330 is a terminal device (mobile phone, etc.) "Battery safety message: Customer, the battery is currently in an abnormal state. Use it safely. You can remind users with the reminder message "Thank you for going to the *** Customer Service Outlet for inspection and repair!" As another example, when reminding the user with the reminder message shown in FIG. 3, the safety monitoring module 330 can further remind the user by blinking the indicator lamp of the terminal device, for example, controlling the indicator lamp to be red. It emits light and blinks frequently. As yet another example, the safety monitoring module 330 can be reminded to the user via the voice function of the terminal device.

Generally, upon receiving the above reminder message, the user goes to the customer service outlet for inspection and repair. However, some users may not be aware of the seriousness of the problem when they receive the above reminder message. Therefore, the reminder message may be ignored and the terminal device may continue to be used normally. In this case, the safety monitoring module 330 can notify the user many times. For example, the user can be notified at least three times. After many notifications, the user can limit some functionality of the terminal device if it still does not handle the problem.

In the embodiment of the present invention, an indicator lamp, a voice module, a display screen, etc. can be installed on the adapter, and when the battery is abnormal, the safety monitoring module 330 sends a reminder message by the adapter to notify the user. As for the specific reminding method, the reminding method of the terminal device can be referred to, which will not be described in detail here.

According to one embodiment of the present invention, the safety monitoring module 330 limits the corresponding functions of the terminal device when it is determined that the battery is abnormal.

That is, the abnormal grade can be determined according to the magnitude of the voltage drop of the battery. For example, the greater the voltage drop in the battery, the more severe the battery anomaly (eg, the more severe the damage and aging). Therefore, battery anomalies are divided into general grades, relatively serious grades, serious grades, and complete failure grades according to the battery voltage drop, and the corresponding functions of the terminal device according to the different anomalous grades. Can be restricted.

For example, in general, the lower the power consumption of a terminal device application, the less heat is generated during battery use. For example, if video chat is not performed and only the instant messaging (IM) application is launched, the battery power consumption is low and the battery heat generation is low, so the possibility of battery hazard is low. However, when the power consumption of an application such as watching a video or playing a mobile game is high, the power consumption of the battery is high and the amount of heat generated by the battery is large, so that a safety accident is likely to occur. Therefore, when it is determined that the battery is abnormal, the safety monitoring module 330 prohibits the use of high power consumption applications such as video applications and game applications if the abnormal grade is a general grade. When the abnormal grade is a relatively serious grade or a serious grade, the safety monitoring module 330 prohibits the entire system from booting and displays on the display screen of the terminal device in order to prevent the occurrence of a safety accident. The message "Battery poses a potential safety hazard and prohibits system booting. Please go to *** Customer Service Outlet for inspection and repair. Thank you for your cooperation!" Remind the user by displaying. If the anomaly grade is a complete failure grade, the battery will be disabled and the safety monitoring module 330 will control the system to power off and will not be able to boot.

In addition, heat can also be generated during the battery charging process, especially in the fast charging state, which will generate more heat in a short period of time, so if the battery is determined to be abnormal, the safety monitoring module 330 will generate more heat. , Also prohibits quick charging of the battery. In more serious situations, even charging the battery is prohibited to prevent the occurrence of safety accidents, and the display screen of the terminal device says "Battery charging is prohibited due to battery damage. *** Remind users by displaying the message "Please go to our Customer Service Outlet for inspection and repair. Thank you for your cooperation!"

According to the battery safety monitoring system of the terminal device according to the embodiment of the present invention, the battery voltage curve is obtained by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state by the first acquisition module. The second acquisition module acquires the battery voltage drop for at least one period based on the battery voltage curve, and the safety monitoring module acquires the battery voltage drop for at least one period. To determine if is abnormal. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

FIG. 7 is a block diagram of a terminal device according to another embodiment of the present invention. As shown in FIG. 7, the terminal device 10 includes the battery safety monitoring system 300 of the terminal device described above.

According to the terminal device according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state. Anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 8 is a block diagram of an adapter according to another embodiment of the present invention. As shown in FIG. 8, the adapter 20 includes the battery safety monitoring system 300 of the terminal device described above.

According to the adapter according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state, thereby causing a battery abnormality. Can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

Reference terms such as "one example", "some examples", "exemplification", "concrete example", or "some examples" referred to herein are examples or examples. It means that the specific features, structures, materials, or properties described in combination are included in at least one embodiment or example of the present invention. In the present specification, the exemplary description of the above-mentioned terms is not limited to referring to the same embodiment or example. The particular features, structures, materials, or properties described can be adequately combined in any one or more examples or examples. Further, as long as there is no contradiction, those skilled in the art can combine different examples or examples described herein and features of different examples or examples.

In addition, terms such as "first" and "second" are used merely to explain and either express or imply relative importance or imply the number of technical features referred to herein. It should not be understood as a thing. Thus, features restricted by terms such as "first", "second" express or imply that they include at least one such feature. In the description of the present invention, unless otherwise specified, "plurality" refers to "at least two" such as two or three.

Any process or method described in a flowchart or other method can be understood to include one or more modules, segments, or portions of executable program code to implement a custom logic function or process step. In addition, the scope of preferred embodiments of the present invention includes other embodiments and may be performed in a different order than shown or described. For example, one of ordinary skill in the art should understand that the functions are performed approximately simultaneously or in reverse order.

The logic and / or steps shown in the flowchart or described in other ways can be considered, for example, as a sequence list of executable programs for implementing logic functions, which can be implemented in computer readable media. To be used by an instruction execution system, device, or device (a computer-based system, a system including a processor, or an instruction execution system, a system that acquires an instruction from the device or device and executes an instruction), or these. Use a combination of instruction execution systems, devices, or devices. As used herein, "computer-readable medium" includes and stores programs for use by instruction execution systems, devices, and devices, or for use in combination of these instruction execution systems, devices, and devices. A device capable of communicating, transmitting, or propagating. Specific examples (not exhaustive) of computer-readable media are electrical connections (electronic devices) containing one or more wires, portable computer disk boxes (magnetic devices), random access memory (RAM), read-only memory. (ROM), erasable programmable read-only memory (EPROM or flash memory), fiber optic devices, compact disk read-only memory (CDROM). In addition, the computer-readable medium can be paper on which the program can be printed, or other suitable medium. For example, perform an optical scan on paper or other medium, then compile and interpret the program, or process it in another way when needed to obtain the program electronically, and then The program is stored in the computer's memory.

It should be understood that each part of the invention may be realized by hardware, software, firmware, or a combination thereof. In the embodiments described above, the plurality of steps or methods are implemented by software or firmware stored in memory and executed by an appropriate instruction execution system. For example, if implemented by hardware, as in another embodiment, it may be implemented from any one or a combination of the following known in the art: a logic function for a data signal. Discrete logic circuit (discrete logic circuit), application specific integrated circuit (ASIC), programmable gate array (programmable gate array, PGA), programmable gate array (PGA) field , FPGA) etc.

It should be understood by those skilled in the art that all or part of the steps of the method embodiments described above can be completed by instructing the relevant hardware via a program. The program is stored on a computer-readable storage medium, and when the program is executed, it comprises one or a combination of the steps of the method embodiment.

Further, each functional unit of each embodiment according to the present invention may be integrated into one processing module, each unit may physically exist independently, and two or more units may be integrated into one module. It may be integrated. The above integrated module is executed by hardware or software. If the above integrated module is implemented in a software functional unit and sold or used as an independent product, the software may be stored on a computer-readable storage medium.

The storage medium described above can be a ROM, a magnetic disk, an optical disk, or the like. Although the examples of the present invention have been described above, the above-described examples are exemplary and should not be understood as limiting the present invention, and those skilled in the art will be within the scope of the present invention. , The embodiments described above can be modified, modified, replaced and modified.

In the description of the present invention, "center", "vertical", "horizontal", "length", "width", "thickness", "top", "bottom", "front", "rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", "Radiation" The directional relationship or positional relationship indicated by terms such as "direction" and "circumferential direction" is a directional relationship or positional relationship based on the attached drawings, and is for conveniently explaining and simplifying the present invention. Or, it does not explicitly or imply that the components always have a particular direction, or are constructed and manipulated in a particular direction, and should not be construed as limiting the invention.

In the present invention, terms such as "install", "join", "connect", and "fix" should be understood in a broader sense, unless expressly defined and limited. For example, unless otherwise specified, they may be fixedly connected, detachably connected, integrated, mechanically connected, or electrically connected. , Can be directly connected, may be indirectly connected via a medium, can be a communication between two components, or can be an interaction relationship between two components. .. Those skilled in the art may understand the specific meanings of the above terms in the present invention, depending on the particular circumstances.

In the present invention, unless there is a clear provision and limitation, the fact that the first feature is "above" or "below" the second feature means that the first feature and the second feature are in direct contact or the first. One feature and the second feature mean indirect contact through the medium. The fact that the first feature is "above", "above", and "top" of the second feature means that the first feature is directly above or diagonally above the second feature, or just the horizontal height of the first feature. Means that is higher than the horizontal height of the second feature. The fact that the first feature is "below", "below", and "bottom surface" of the second feature means that the first feature is directly below or diagonally below the second feature, or just the horizontal height of the first feature. It means that it is lower than the horizontal height of the second feature.

Although the examples of the present invention have been described above, the above-described examples are exemplary and should not be understood as limiting the present invention, and those skilled in the art will be within the scope of the present invention. , The embodiments described above can be modified, modified, replaced and modified.

The present invention relates to the technical field of the terminal device, and more specifically to the adapter, the terminal device and its battery safety monitoring method and monitoring system.

A battery is a power source for a terminal device and supplies stable power to a terminal device such as a mobile phone for a long period of time. The first batteries used in mobile terminals were nickel-chrome batteries and nickel-metal hydride (Ni-MH) batteries. However, the capacities of nickel-chrome batteries and nickel-metal hydride batteries can no longer meet the power requirements as the screens of mobile terminals become larger and their functions are enhanced. Instead, lithium-ion batteries have many advantages, such as high energy density, which allows for lighter weight, higher capacity, faster charging and discharging, and compared to nickel-metal hydride and nickel-metal hydride batteries. Since there is no memory effect and elemental damage to the environment can be minimized, the conventional nickel-chrome battery and nickel-metal hydride battery will be gradually replaced.

Lithium-ion batteries have effectively solved the problem of battery capacity, but safety issues still exist. For example, if a lithium-ion battery is damaged and a short circuit occurs, it will generate heat inside the cell.If this heat generation is too fast, the battery may catch fire and the battery may explode, so to prevent accidents. , Battery safety needs to be monitored.

The battery safety monitoring method of the terminal device according to the first aspect of the present invention includes a step of generating a battery voltage curve by acquiring the voltage of the battery in real time when the battery of the terminal device is in a stable state, and a battery. It comprises a step of obtaining a battery voltage drop for at least one period based on a voltage curve and a step of determining whether the battery is abnormal based on the battery voltage drop for at least one period. ..

The terminal device according to the second aspect of the present invention includes a memory, a processor, and a battery safety monitoring program stored in the memory and executed by the processor. When the battery safety monitoring program of the terminal device is executed by the processor, if the battery is fully charged and the terminal device still maintains a charging connection with the adapter, by acquiring the battery voltage in real time. Generate a battery voltage curve, obtain the battery voltage drop for at least one period based on the battery voltage curve, and determine if the battery is abnormal based on the battery voltage drop for at least one period To do.

The battery safety monitoring system of the terminal device according to the third aspect of the present invention is a first acquisition module that generates a battery voltage curve by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state. And, based on the battery voltage curve, the second acquisition module that acquires the battery voltage drop for at least one period, and based on the battery voltage drop for at least one period, determines whether the battery is abnormal or not. It is equipped with a safety monitoring module.

FIG. 1 is a flowchart of a battery safety monitoring method for a terminal device according to an embodiment of the present invention. FIG. 2 is a schematic view showing a battery voltage curve according to an embodiment of the present invention. FIG. 3 is a schematic view showing a reminder message of a mobile terminal according to an embodiment of the present invention. FIG. 4 is a block diagram of a terminal device according to an embodiment of the present invention. FIG. 5 is a block diagram of an adapter according to an embodiment of the present invention. FIG. 6 is a block diagram of a battery safety monitoring system for a terminal device according to an embodiment of the present invention. FIG. 7 is a block diagram of a terminal device according to another embodiment of the present invention. FIG. 8 is a block diagram of an adapter according to another embodiment of the present invention.

Hereinafter, examples of the present invention will be described in detail with reference to the accompanying drawings. The same or similar reference numerals indicate the same or similar parts, or parts having the same or similar functions. The examples described below with reference to the accompanying drawings are exemplary and are used to interpret the invention and should not be understood to limit the invention.

Before explaining the battery safety monitoring method of the terminal device, the battery safety monitoring system and the battery safety monitoring method of the terminal device, or the terminal device and the adapter having the battery safety monitoring system according to the embodiment of the present invention, first, first. The structure of the battery in the terminal device and the potential safety hazard of the battery will be described.

For example, a lithium-ion battery mainly consists of a cell and a battery protection system. The cell is called the "heart" of the lithium-ion battery and contains the anode material, cathode material, electrolytes, isolation membrane and housing, and the outside of the cell is the battery protection system. The anode material of the cell is a lithium molecular material such as lithium manganate and lithium cobalt oxide. The anode material determines the energy of the battery. The cathode material is graphite. The isolation membrane is placed between the anode and cathode of the battery. For ease of understanding, the isolation membrane is like paper that is continuously folded in a small battery case and filled with anode material, cathode material and electrolyte. In the charging process, the lithium molecules in the anode material are activated, moved to the cathode under the action of an external electric field and stored in the gaps of the graphite carbon structure. As more lithium molecules move, more energy is stored. In the discharge process, the lithium ions in the cathode move to the anode, which becomes the first lithium molecule in the anode. Repeat the above steps to charge and discharge the battery.

Isolation membranes are primarily used to completely separate the cell anode and cathode materials. Direct contact between the anode material and the cathode material creates a short circuit inside the battery, creating a potential safety hazard. Therefore, the isolation membrane should not be too thin, as it tends to be damaged. However, manufacturers have higher energy densities because users have higher demands on terminal devices, for example, mobile terminals are lighter, thinner, their screens are larger, and battery life is longer. Start looking for a battery to have. For example, increasing the energy density of the battery by filling with more anode and cathode materials. However, when more anode and cathode materials are filled for the same volume, the isolation membrane becomes thinner. If the battery is damaged by an external impact or the like, the isolation membrane is likely to be damaged and a short circuit may occur.

As an example, when the battery is subjected to external mechanical damage such as compression, dropping, or piercing, the isolation membrane is so thin that the isolation membrane is easily damaged, resulting in a short circuit between the anode and cathode, that is, a short circuit inside the battery. Is likely to occur. As another example, lithium ions may accumulate at the anode and cathode during the charging and discharging process of the battery. When accumulation occurs, it forms crystalline branches (similar to what we have often seen forming crystals), and the crystalline branches gradually grow longer. During this process, crystal branches can pierce the isolation membrane, causing an internal short circuit in the battery. If a short circuit occurs while the battery is in use, a large amount of heat is generated inside the cell, which can evaporate the electrolyte in the cell. If the heat is generated very quickly, the vaporization process will be very fast accordingly, the internal pressure of the cell will rise, and when the internal pressure reaches a certain level, the housing will not withstand and the housing will crack. It can occur and cause an explosion. Encountering a fire can also cause a battery fire, thus causing a safety accident.

In addition, the higher the energy density, the thinner the isolation membrane, the more easily damaged the isolation membrane, causing safety accidents, and in addition, fast charging is also a major factor in the potential safety hazard of the battery. It is one of.

Fast charging, as the name implies, is the process of rapidly charging a rechargeable battery. For example, the battery charging process can include at least one of a trickle charging step, a constant current charging step and a constant voltage charging step. The trickle charge phase uses a current feedback loop to ensure that the current flowing through the battery during the trickle charge phase meets the magnitude of the battery's expected charge current (eg, the first charge current). For example, if the voltage is less than 3.0v, a charging current of 100mA (milliamperes) is used to precharge the battery. In the constant current charging phase, a current feedback loop is used so that the current flowing through the battery during the constant current charging phase meets the magnitude of the battery's expected charging current (eg, a second charging current greater than the first charging current). To do so. For example, with different batteries, the charging current ranges from 0.1 C (coulomb) to some coulombs (C is the battery capacity). Generally, in the constant current charging stage, a charging current of 0.1 C is used for charging in the normal charging mode, but a charging current exceeding 0.1 C is used for charging in the quick charging mode in a short time. Charging is complete. In the constant voltage charging stage, a voltage feedback loop is used to ensure that the voltage applied to the battery during the constant voltage charging stage meets the magnitude of the expected charging voltage of the battery. For example, if the battery voltage is equal to 4.2V, the constant voltage charging stage is entered. At this stage, the charging voltage is always 4.2V. When the battery is gradually fully charged, the charging current becomes smaller and smaller, and when the charging current is less than 100 mA, it can be determined that the battery is fully charged.

In the constant current charging stage, the charging current is large (for example, it can be 0.2C to 0.8C or can reach up to 1C), and the battery charging process is an electrochemical reaction process. It inevitably generates heat, and the larger the charging current, the larger the amount of heat generated in a short time. Damage to the isolation membrane is likely to cause a short circuit between the anode and cathode. When a short circuit occurs, more heat is generated, electrolyte evaporation occurs, the internal pressure of the cell rises, and when the internal pressure reaches a certain level, the housing cannot withstand and cracks occur in the housing. As a result, a safety accident such as an explosion may occur.

In other words, an internal short circuit in the battery can cause the battery to become abnormal, pose a potential safety hazard, and cause a safety accident while using the battery.

In addition, as the frequency of use of the battery increases, the flow path of lithium ions inside the battery is obstructed by an increasing number of obstacles until the battery cannot be used normally. Such substances that accumulate at the anode and cathode of the battery directly reduce the stability of the battery. For example, some free metal material produced after innumerable chemical reactions inside the battery accumulates in large quantities at the anode of the battery, while a small number of free metal material accumulates at the cathode, eventually both at the anode and the cathode. A metal coating is formed on all of the batteries. In addition, the electrolyte of the battery also damages the electrodes and the anode is constantly oxidized, making it difficult to replace lithium ions and reducing battery performance. For example, the charge and discharge capacity of a battery is significantly reduced after a period of time. For example, it takes a long time to fully charge the battery, and the battery can be completely discharged within a very short time, so that the battery cannot be used normally.

Therefore, regardless of whether the battery is aged due to normal use or an internal short circuit of the battery due to external damage or the like, it has a great influence on the normal use of the battery. In serious situations, it can also cause a safety accident. Therefore, it is necessary to determine whether or not the battery is abnormal. In order to effectively monitor whether the battery is abnormal, avoid battery safety hazards, and avoid safety accidents, this disclosure effectively determines whether the battery is abnormal. Provide a safety monitoring method that can be monitored.

Hereinafter, the battery safety monitoring method of the terminal device, the non-temporary computer-readable storage medium, the battery safety monitoring system of the terminal device, the terminal device, and the adapter according to the embodiment of the present invention will be described with reference to the accompanying drawings. ..

The "terminal device" used in the embodiment of the present invention can be a device connected by a wired line and / or a device that receives / transmits a communication signal via a wireless interface, but is not limited thereto. Absent. Wired lines include, for example, the public switched telephone network (PSTN), digital subscriber line (DSL), digital cables, direct connection cables, and / or other data connection lines or network connection lines. Can be. The wireless interface includes, for example, a cellular network, a wireless local area network (WLAN), a digital television network such as a digital video broadcasting handheld, a DVB-H network, a satellite network, an amplitude modulation frequency. It can communicate with an amplitude modulation-frequency modulation (AM-FM) broadcast transmitter and / or other communication terminal. Terminals configured to communicate via a wireless interface can be referred to as "wireless communication terminals," "wireless terminals," and / or "mobile terminals." Examples of mobile terminals include satellite or cellular telephones, personal communication systems (PCS) terminals (which can combine cellular radiotelephones with data processing, fax and data communication capabilities), and personal digital assistants (Persona Digital Assistant). , PDA) (Radiotelephone, pager, Internet / Internet access, web browsing, notebook, calendar and / or global positioning system) (radiotelephone), pager (pager), internet / intranet access (internet / internet access), web browsing It includes, but is not limited to, a system (which can be equipped with a global positioning system (GPS) receiver) and a regular laptop and / or handheld receiver, or other electronic device with radiotelephone capabilities. Absent.

FIG. 1 is a flowchart of a battery safety monitoring method for a terminal device according to an embodiment of the present invention. As shown in FIG. 1, the battery safety monitoring method of the terminal device according to the embodiment of the present invention includes the following steps.
S1, When the battery of the terminal device is in a stable state, the battery voltage curve is generated by acquiring the battery voltage in real time.

In one embodiment of the present invention, when the battery is fully charged and the terminal device still retains the charging connection state with the adapter, it is determined that the battery is in a stable state.

Specifically, the fact that the battery is fully charged and the terminal device still retains the charging connection with the adapter means that the battery of the current terminal device is fully charged and the adapter (charger, etc.) is attached to the terminal device. Means stay connected. In this case, the safety of the battery can be detected even if the background application of the terminal device is not closed. The reason is that when the display screen of the terminal device is lit and / or the application is launched, the adapter remains connected to the terminal device, so that the power consumption of the terminal device is completely supplied by the charger. Is.

For example, in general, when power is supplied using alternating current (AC) power, most devices cannot operate directly on AC (AC current / voltage). Instead, the AC (such as 220V) supplied by the AC power source is converted to stable direct current (DC) by the adapter, and then the DC is converted and charged by the conversion circuit of the device to be charged (such as a terminal device). Obtain the expected charging voltage and / or charging current of the battery of the device (terminal device, etc.).

As an example, the conversion circuit can be a charge management module such as a charge integrated circuit (IC) of a mobile terminal. In the process of charging the battery, the conversion circuit is used to manage the charging voltage and / or charging current of the battery. The conversion circuit functions as a voltage feedback module and / or a current feedback module, and manages the charging voltage and / or charging current of the battery. For example, a user usually connects a mobile terminal to an adapter before going to bed. At this time, the charging IC of the mobile terminal starts trickle charging of the battery, and then performs constant current charging and constant voltage charging of the battery. When the charging voltage reaches 4.2 V and the charging current is less than 100 mA, the charging IC determines that the battery is completely charged. At this time, since the adapter is not pulled out, voltage and current still exist at the input end of the conversion circuit. This indicates that the adapter is still connected to the terminal device. In this case, the charging IC launches an application related to the present invention and begins to detect the safety of the battery.

In another embodiment of the present invention, when the terminal device is in the screen-off standby state, it is determined that the battery is in a stable state.

"Screen off standby state" means that the display screen of the terminal device is in the off state, all background applications are closed, and only applications related to the present invention are started. That is, when detecting the safety of the battery, the terminal device is in a state where it consumes almost no power. That is, the battery is in a naturally discharged state. This makes it possible to avoid detection inaccuracy due to power consumption of the display screen or application.

As an example, most users choose a period when they will not be using the device (such as a specific period before dawn), close all background applications, switch the device display screen to the off state, and Launch an application related to the present invention to begin detecting battery safety. For example, the system of the terminal device can detect whether or not it is currently 1:00 am. If "Yes", it is detected whether or not the display screen of the terminal device is currently on (that is, lit). If yes, it indicates that the user is still using the terminal device and does not detect battery safety in this situation. If "No", the system automatically controls to close all background applications, launches applications related to the invention and begins to detect battery safety.

As another example, the user can manually set the terminal device to the screen-off standby state if it is required to detect the safety of the battery. For example, a user launches an application related to the present invention, then uses the application buttons to close all background applications on the system at once, and uses the power button to control the display screen to an off state. At this point, the application detects that all background applications on the system are closed, the display screen is off, and the application begins to detect battery safety.

As shown in FIG. 2, when detecting the safety of the battery of the terminal device, a relatively stable battery voltage curve is obtained by continuously monitoring the battery voltage. In the embodiments of the present invention, battery voltage detection can be achieved by conventional battery voltage detection circuits and will not be described in detail herein.

S2, Obtain a battery voltage drop for at least one period based on the battery voltage curve.

S3, it is determined whether or not the battery is abnormal based on the voltage drop of the battery for at least one period.

Specifically, when the battery is in a stable state, the battery self-discharges. Battery self-discharge is due to the internal current of the battery, known as leakage current, and abnormal battery leakage current is higher than normal battery leakage current. That is, in the same period, the abnormal battery voltage drop is higher than the normal battery voltage drop. Therefore, one period of voltage drop or multiple periods of voltage drop in the battery voltage curve can be selected as a parameter representing the leakage current of the battery, and one period of voltage drop or multiple periods of voltage drop can be selected. Determine if the battery is abnormal based on the voltage drop.

For example, plug the adapter into the mobile device being tested (such as a mobile phone) and start charging the mobile device. After the mobile device is fully charged, do not remove the charger and observe the battery voltage drop. For example, a digital multimeter is used to record the battery voltage and record the data as shown in Table 1. Then, based on the data in Table 1, observe the effect of the power consumption of the main board on the voltage of the battery under the condition that the adapter is not removed.

The rated capacity of the battery is 2750 mAh and the rated voltage is 4.35 V. 1 #, 2 #, 3 # ,. .. .. 10 # indicates 10 different samples for testing.

As shown in Table 1, when the battery of the mobile terminal is in a normal state without pulling out the adapter, if the battery is left for a certain period of time (for example, 1h) after being fully charged, the amount of voltage change of the battery Can be maintained within 1 mV within a predetermined time (eg, 10 min).

Next, select a new battery, charge the battery to half its capacity (half charge), and then repeatedly drop the battery from a height of 1.8 m 10 times (6 times at the corners and 4 times at the surface). .. Check the heat generation status of the battery with an infrared thermal imager each time it falls. When the temperature change in the local region of the battery exceeds 5 ° C., the dropping of the battery is stopped. After that, the battery is put into the mobile terminal and fully charged, and as shown in Table 2, the voltage drop after the battery is dropped is started to be observed without pulling out the adapter.

The rated capacity of the battery is 2980 mAh, and the rated voltage is 4.35 V. 1 #, 2 #, 3 # ,. .. .. 10 # indicates 10 different samples for testing. In addition, the samples 4 # and 5 # clearly generate heat continuously after the drop experiment, and the voltage of the battery can only reach about 4 V, and even if it is charged, it cannot reach any higher voltage.

From Table 2, if the battery is dropped and damaged, if the adapter is left for a certain period of time (for example, 1h) after being fully charged without pulling out the adapter, it will be within a predetermined time (for example, 10min). It can be seen that the amount of change in the voltage of the battery is relatively clear. Therefore, based on the voltage change of the battery, it is possible to detect whether or not the battery is abnormal with a high probability, that is, whether or not the battery has a safety problem.

Specifically, in one embodiment, when the terminal device is charged for the first time, determining whether or not the battery is abnormal based on the voltage drop of the battery for at least one period corresponds to each period. Obtaining a reference value to be used, comparing the battery voltage drop for each period with the corresponding reference value, and if the battery voltage drop for any one period is greater than the corresponding reference value, the battery is considered abnormal. Be prepared to judge. The standard values corresponding to different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the corresponding standard values differ depending on the period, specifically, test by experiment and in advance. Can be acquired.

Specifically, as an example, when the terminal device (specifically, the battery of the terminal device) is charged and discharged for the first time, the voltage drop for one period of the battery voltage curve is selected and the battery is abnormal. It is possible to judge whether or not.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop, set to period T1 = 30min, based on the battery model number and period T1. Acquire the corresponding reference value a = 8 mV. When the terminal device is charged and discharged for the first time, the abnormality of the battery starts to be detected 40 minutes after the terminal device is fully charged, and the voltage of the battery at this point is recorded as V40 min. When 70 minutes have passed since the terminal device was completely charged, the battery voltage at this point is recorded as V70 min, and it can be calculated that the voltage drop V1 = V40 min-V70 min in the period T1. Next, it is determined whether or not the voltage drop V1 in the period T1 is larger than the reference value a. When the voltage drop V1 in the period T1 is larger than the reference value a, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

The purpose of selecting the 40th min after the terminal device is fully charged and setting it as the starting point for calculating the voltage drop is to reduce the voltage of the battery to a stable state. In an actual application, the start point for calculating the voltage drop can be set to 1h, and is specifically selected according to the actual situation.

As another example, when the terminal device is charged and discharged for the first time, a voltage drop over multiple periods of the battery voltage curve can be selected to determine if the battery is abnormal. Hereinafter, it will be described in detail that the voltage drop for two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop. In order to quickly detect whether the battery is abnormal or not, the period T1 can be set to a small value such as 20 min or 30 min, while the other period T2 can be set to a large value such as 50 min or 70 min. The threshold for the other period T2 is n (usually less than or equal to 2/3 of the total duration of battery discharge). Further, the period T1 = 30 min and T2 = 50 min can be set, the corresponding reference value a = 8 mV is acquired based on the battery model number and the period T1, and the corresponding reference value a = 8 mV is obtained based on the battery model number and the period T2. The reference value b = 12 mV is acquired.

When the terminal device is charged and discharged for the first time, 40 minutes after the terminal device is fully charged, the battery abnormality starts to be detected, the voltage of the battery at this point is recorded as V40 min, and the terminal device is fully charged. After 70 min, the battery voltage at this point is recorded as V70 min, and it can be calculated that the voltage drop V1 = V40 min-V70 min in the period T1. After that, 120 minutes (40 + T1 + T2 = 40 + 30 + 50 = 120) have elapsed since the terminal device was completely charged, the battery voltage at this point is recorded as V120min, and it can be calculated that the voltage drop K1 = V40min-V120min during the period T2. Finally, it is determined whether or not the voltage drop V1 in the period T1 is larger than the reference value a, and whether or not the voltage drop K1 in the period T2 is larger than the reference value b. If the voltage drop V1 in the period T1 is larger than the reference value a, or the voltage drop K1 in the period T2 is larger than the reference value b, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

According to one embodiment of the present invention, when the number of times the terminal device is charged is greater than a preset number of times, it is currently possible to obtain a voltage drop of the battery for at least one period based on the battery voltage curve. after charging the number of pre-set before charging, won the voltage drop of the battery for each period, with the acquiring a voltage drop of a preset number of battery corresponding to each period, at least one Determining whether a battery is abnormal based on the battery voltage drop of a period is determined by calculating the average value of the voltage drop of a preset number of batteries corresponding to each period. Obtaining the corresponding reference value, determining whether the difference between the battery voltage drop and the corresponding reference value for each period after the current charge is greater than the corresponding preset threshold, It comprises determining that the battery is abnormal if the difference between the voltage drop of the battery for any one period after the current charge and the corresponding reference value is greater than the corresponding preset threshold.

The preset thresholds for different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the preset thresholds vary depending on the period, specifically, tested by experiment. Can be acquired in advance.

That is, in the embodiment of the present invention, the average voltage drop of a plurality of continuous charges and discharges can be selected and used as the reference value A, that is, A = (Vx + 1 + Vx + 2 + ... + Vx + i) / i, i. Indicates the number of charge / discharge cycles, Vx + 1 indicates the voltage drop acquired in the first charge / discharge process, Vx + 2 indicates the voltage drop acquired in the second charge / discharge process, and Vx + i indicates the voltage drop acquired in the i-th charge / discharge process. Shows the voltage drop. Next, the difference between the voltage drop Vx + i + 1 in the (i + 1) th charge / discharge process and the reference value A is calculated and recorded as ΔV. Here, ΔV = Vx + i + 1-A, and it is determined whether or not ΔV is larger than the corresponding preset threshold value. If ΔV is greater than the corresponding preset threshold, the battery is determined to be abnormal.

Specifically, as an example, it is possible to determine whether or not the battery is abnormal by selecting a voltage drop for one period of the battery voltage curve each time the terminal device is charged or discharged. ..

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, since the number of times the terminal device has been charged has already reached a certain number, the reference value A is dynamically updated. That is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. The tenth charge / discharge process period T1 is a voltage drop. Next, the voltage drop V11 in the eleventh charge / discharge process is compared with the average voltage drop in the previous five charge / discharge processes. That is, first, the difference ΔV between the voltage drop V11 in the eleventh charge / discharge process and the reference value A is calculated, ΔV = V11−A, and ΔV is larger than the corresponding preset threshold value m. Judge whether or not. If ΔV is greater than the corresponding preset threshold m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period and adopting a dynamic algorithm when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and the potential due to the battery abnormality. Can be immediately reminded and repaired to avoid any safety hazards.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, the number of times the terminal device has been charged has already reached a certain number of times, so that the reference value A corresponding to the period T1 and the period All the reference values B corresponding to T2 are dynamically updated, that is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. It is the voltage drop of T1 during the tenth charge / discharge process, the reference value B = (K6 + K7 + K8 + K9 + K10) / 5, and K6, K7 ,. .. .. , K10 are the 6th and 7th, respectively. .. .. It is the voltage drop of T2 during the tenth charge / discharge process. Next, the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A are compared, and the voltage drop K11 of the eleventh charge / discharge process period T2 and the reference value B are compared. That is, first, the difference ΔV between the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A is calculated, ΔV = V11-A, and the eleventh charge / discharge process period T2. The difference ΔK between the voltage drop K11 and the reference value B is calculated, and ΔK = K11-B, and it is determined whether or not ΔV is larger than the preset threshold value m corresponding to the period T1. And, it is determined whether or not ΔK is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state and adopting a dynamic algorithm, it is possible to monitor whether the battery is abnormal or not, and due to the battery abnormality. It can be immediately reminded and repaired to avoid potential safety hazards. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring method of the terminal device according to the present invention can monitor a battery abnormality by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, it is currently possible to obtain a battery voltage drop for at least one period based on the battery voltage curve when the number of times the terminal device is charged is less than a preset number of times. after each charge before charging, won the voltage drop of the battery for each period, with that obtaining the voltage drop of the plurality of batteries corresponding to each period, based on the voltage drop of the battery at least one time period To determine whether a battery is abnormal, to obtain a reference value corresponding to each period by calculating the average value of the voltage drops of multiple batteries corresponding to each period, the current charging Determining if the difference between the battery voltage drop for each later period and the corresponding reference value is greater than the corresponding preset threshold, for the battery for any one period after the current charge. It comprises determining that the battery is abnormal if the difference between the voltage drop and the corresponding reference value is greater than the corresponding preset threshold.

That is, in the embodiment of the present invention, when the number of times of charging the terminal device is smaller than the preset number of times (for example, 5 times), the average voltage drop of all the previous charge / discharge processes is directly set as the reference value A. , Determine if the battery is abnormal.

Specifically, as an example, each time the terminal device is charged or discharged, a voltage drop for one period of the battery voltage curve can be selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 at this time, and V1, V2, and V3 are the terminal devices, respectively. This is the voltage drop of T1 during the first, second, and third charge / discharge processes. Next, the voltage drop V4 in the fourth charge / discharge process is compared with the average voltage drop in the previous three charge / discharge processes, and the difference between the voltage drop V4 in the fourth charge / discharge process and the reference value A is Δ. V is calculated, ΔV = V4-A, and it is determined whether or not ΔV is larger than the preset threshold m. When ΔV is larger than the preset threshold value m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 at this time, and V1, V2, and V3 are the terminal devices, respectively. The voltage drop of T1 during the first, second, and third charge / discharge processes, the reference value B = (K1 + K2 + K3) / 3, and K1, K2, and K3 are the first, second, and third terminals, respectively. The third is the voltage drop of T2 during the charge / discharge process. Next, the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A are compared, and the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B are compared. That is, first, the difference ΔV between the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A is calculated, ΔV = V4-A, and ΔV is preset corresponding to the period T1. It is determined whether or not it is larger than the threshold value m, and the difference ΔK between the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B is calculated, and ΔK = K4-B. , ΔK is determined whether or not is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring method of the terminal device according to the present invention can monitor a battery abnormality by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when it is determined that the battery is abnormal, a reminder message indicating the abnormality of the battery is transmitted by the terminal device or the adapter.

For example, if a battery is currently detected to be abnormal, the user needs to be notified. As an example, as shown in Fig. 3, "Battery safety message of terminal equipment (mobile phone, etc.): Customer, the battery is currently in an abnormal state. For safe use, *** You can remind users with the reminder message "Thank you for going to the customer service outlet for inspection and repair!". As another example, when reminding the user with the reminder message shown in FIG. 3, the user can be reminded by blinking the instruction lamp of the terminal device. For example, the instruction lamp is controlled to emit red light and frequently. Make it blink with. As yet another example, the user can be reminded via the voice function of the terminal device.

Generally, upon receiving the above reminder message, the user goes to the customer service outlet for inspection and repair. However, some users may not be aware of the seriousness of the problem when they receive the above reminder message. Therefore, the reminder message may be ignored and the terminal device may continue to be used normally. In this case, the user can be notified many times. For example, the user can be notified at least three times. After many notifications, the user can limit some functionality of the terminal device if it still does not handle the problem.

In the embodiment of the present invention, when the battery is abnormal, an instruction lamp, a voice module, a display screen, etc. can be installed in the adapter in order to send a reminder message to notify the user, which is a specific reminder method. Can refer to the reminding method of the terminal device, which is not described in detail here.

According to one embodiment of the present invention, if it is determined that the battery is abnormal, the corresponding function of the terminal device is limited.

That is, the abnormal grade can be determined according to the magnitude of the voltage drop of the battery. For example, the greater the voltage drop in the battery, the more severe the battery anomaly (eg, the more severe the damage and aging). Therefore, battery anomalies are divided into general grades, relatively serious grades, serious grades, and complete failure grades according to the battery voltage drop, and the corresponding functions of the terminal device according to the different anomalous grades. Can be restricted.

For example, in general, the lower the power consumption of a terminal device application, the less heat is generated during battery use. For example, if video chat is not performed and only the instant messaging (IM) application is launched, the battery power consumption is low and the battery heat generation is low, so the possibility of battery hazard is low. However, when the power consumption of an application such as watching a video or playing a mobile game is high, the power consumption of the battery is high and the amount of heat generated by the battery is large, so that a safety accident is likely to occur. Therefore, when it is determined that the battery is abnormal, if the abnormal grade is a general grade, the use of high power consumption applications such as video applications and game applications is prohibited. If the abnormal grade is a relatively serious grade or a serious grade, in order to prevent the occurrence of a safety accident, it is prohibited to start the entire system, and the display screen of the terminal device says "potential for the battery. Due to safety concerns, it is prohibited to boot the system. Please go to the *** customer service outlet for inspection and repair. Thank you for your cooperation! ”By displaying the message. Remind me to. If the abnormal grade is a complete failure grade, the battery will be disabled, the system will be powered off, and it will not be able to boot.

In addition, heat can also be generated during the battery charging process, especially in the fast-charged state, where more heat is generated in a short period of time, so if the battery is determined to be abnormal, quick charging of the battery is also prohibited. To do. In more serious situations, even charging the battery is prohibited to prevent the occurrence of safety accidents, and the display screen of the terminal device says "Battery charging is prohibited due to battery damage. *** Remind users by displaying the message "Please go to our Customer Service Outlet for inspection and repair. Thank you for your cooperation!"

As described above, according to the battery safety monitoring method of the terminal device according to the embodiment of the present invention, when the battery of the terminal device is in a stable state, the battery voltage curve is obtained by acquiring the battery voltage in real time. Generate. Based on the battery voltage curve, the battery voltage drop for at least one period is obtained, and based on the battery voltage drop for at least one period, it is determined whether or not the battery is abnormal. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

Further, an embodiment of the present invention provides a non-temporary computer-readable storage medium in which a computer program is stored, and when the program is executed by a processor, the above-mentioned battery safety monitoring method is carried out.

According to the non-temporary computer-readable storage medium according to the embodiment of the present invention, by implementing the above battery safety monitoring method, when the battery is in a stable state, the voltage drop of the battery for at least one period can be achieved. By monitoring, battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 4 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 4, the terminal device 100 includes a memory 110, a processor 120, and a battery safety monitoring program stored in the memory 110 and executed by the processor 120. When the battery safety monitoring program of the terminal device 100 is executed by the processor 120, the steps of the battery safety monitoring method described above are realized.

According to the terminal device according to the embodiment of the present invention, by realizing the steps of the battery safety monitoring method described above, by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state. , Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 5 is a block diagram of an adapter according to an embodiment of the present invention. As shown in FIG. 5, when a charging connection is established between the adapter 200 and the terminal device 100, the adapter 200 and the terminal device 100 perform two-way communication. The adapter 200 includes a memory 210, a processor 220, and a battery safety monitoring program stored in the memory 210 and running on the processor 220. When the battery safety monitoring program of the adapter 200 is executed by the processor 220, the steps of the battery safety monitoring method described above are realized.

According to the adapter according to the embodiment of the present invention, by realizing the steps of the battery safety monitoring method described above, when the battery is in a stable state, the voltage drop of the battery for at least one period is monitored. Battery anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 6 is a block diagram of a battery safety monitoring system for a terminal device according to an embodiment of the present invention. As shown in FIG. 6, the battery safety monitoring system 300 of the terminal device includes a first acquisition module 310, a second acquisition module 320, and a safety monitoring module 330.

The first acquisition module 310 is used to generate a battery voltage curve by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state. The second acquisition module 320 is used to acquire a battery voltage drop for at least one period based on the battery voltage curve. The safety monitoring module 330 is used to determine if the battery is abnormal based on the voltage drop of the battery for at least one period.

According to one embodiment of the invention, the safety monitoring module 330 determines that the battery is in a stable state when the battery is fully charged and the terminal device still retains the charging connection state with the adapter.

Specifically, the fact that the battery is fully charged and the terminal device still retains the charging connection with the adapter means that the battery of the current terminal device is fully charged and the adapter (charger, etc.) is attached to the terminal device. Means stay connected. In this case, the safety of the battery can be detected even if the background application of the terminal device is not closed. The reason is that when the display screen of the terminal device is lit and / or the application is launched, the adapter remains connected to the terminal device, so that the power consumption of the terminal device is completely supplied by the charger. Is.

For example, in general, when power is supplied using alternating current (AC) power, most devices cannot operate directly on AC (AC current / voltage). Instead, the AC (such as 220V) supplied by the AC power source is converted to stable direct current (DC) by the adapter, and then the DC is converted and charged by the conversion circuit of the device to be charged (such as a terminal device). Obtain the expected charging voltage and / or charging current of the battery of the device (terminal device, etc.).

As an example, the conversion circuit can be a charge management module such as a charge integrated circuit (IC) of a mobile terminal. In the process of charging the battery, the conversion circuit is used to manage the charging voltage and / or charging current of the battery. The conversion circuit functions as a voltage feedback module and / or a current feedback module, and manages the charging voltage and / or charging current of the battery. For example, a user usually connects a mobile terminal to an adapter before going to bed. At this time, the charging IC of the mobile terminal starts trickle charging of the battery, and then performs constant current charging and constant voltage charging of the battery. When the charging voltage reaches 4.2 V and the charging current is less than 100 mA, the charging IC determines that the battery is completely charged. At this time, since the adapter is not pulled out, voltage and current still exist at the input end of the conversion circuit. This indicates that the adapter is still connected to the terminal device. In this case, the charging IC sends such a state to the safety monitoring module 330, and the safety monitoring module 330 determines that the battery is in a stable state.

The safety monitoring module 330 can determine whether or not the battery is currently in a stable state based on the charging voltage and charging current of the battery and the voltage and current at the input end of the conversion circuit. Based on the above, the state of the battery can be directly acquired by the charging IC.

In another embodiment of the invention, the safety monitoring module 330 determines that the battery is in a stable state when the terminal device is in the screen-off standby state.

"Screen off standby state" means that the display screen of the terminal device is in the off state, all background applications are closed, and only the battery safety monitoring system of the present invention is started. That is, when detecting the safety of the battery, the terminal device is in a state where it consumes almost no power. That is, the battery is in a naturally discharged state. This makes it possible to avoid detection inaccuracy due to power consumption of the display screen or application.

As an example, most users choose a period of non-use of the device (such as a specific period before dawn), close all background applications, switch the device display screen off, and The battery safety monitoring system of the present invention is activated to start detecting the safety of the battery. For example, the safety monitoring module 330 of the battery safety monitoring system can detect whether or not it is currently 1:00 am. If "Yes", it is detected whether or not the display screen of the terminal device is currently on (that is, lit). If yes, it indicates that the user is still using the terminal device and does not detect battery safety in this situation. If "No", the Safety Monitoring Module 330 will automatically control to close all background applications and begin to detect battery safety.

As another example, the user can manually set the terminal device to the screen-off standby state if it is required to detect the safety of the battery. For example, the user activates the battery safety monitoring system of the present invention, then uses the system buttons to close all background applications on the system at once, and uses the power button to control the display screen to the off state. To do. At this point, the battery safety monitoring system will detect that all background applications on the system are closed and the display screen is off, and the battery safety monitoring system will begin to detect battery safety. ..

As shown in FIG. 2, when detecting the safety of the battery of the terminal device, first, a relatively stable battery voltage curve is obtained by continuously monitoring the battery voltage by the first acquisition module 110. Acquire. The second acquisition module 320 then acquires a battery voltage drop for at least one period based on the battery voltage curve. Finally, the safety monitoring module 330 determines if the battery is abnormal based on the voltage drop of the battery for at least one period.

Specifically, according to one embodiment of the present invention, when the terminal device is charged for the first time, the safety monitoring module 330 further acquires a reference value corresponding to each period, and the voltage of the battery in each period. It is used to compare the drop and the corresponding reference value and determine that the battery is abnormal if the voltage drop of the battery for any one period is greater than the corresponding reference value. The standard values corresponding to different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the corresponding standard values differ depending on the period, specifically, test by experiment and in advance. Can be acquired.

Specifically, as an example, when the terminal device is charged and discharged for the first time, it is possible to select a voltage drop for one period of the battery voltage curve to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop, set to period T1 = 30min, based on the battery model number and period T1. Acquire the corresponding reference value a = 8 mV. When the terminal device is charged and discharged for the first time, the abnormality of the battery starts to be detected 40 minutes after the terminal device is fully charged, and the second acquisition module 120 records the voltage of the battery at this time as V40 min. When 70 minutes have passed since the terminal device was completely charged, the second acquisition module 120 records the voltage of the battery at this time as V70 min, and can calculate that the voltage drop V1 = V40min-V70min in the period T1. Next, the safety monitoring module 330 determines whether or not the voltage drop V1 in the period T1 is larger than the reference value a. When the voltage drop V1 in the period T1 is larger than the reference value a, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

The purpose of selecting the 40th min after the terminal device is fully charged and setting it as the starting point for calculating the voltage drop is to reduce the voltage of the battery to a stable state. In an actual application, the start point for calculating the voltage drop can be set to 1h, and is specifically selected according to the actual situation.

As another example, when the terminal device is charged and discharged for the first time, a voltage drop over multiple periods of the battery voltage curve can be selected to determine if the battery is abnormal. Hereinafter, it will be described in detail that the voltage drop for two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, the 40th minute after the terminal device is fully charged can be selected as the starting point for calculating the voltage drop. In order to quickly detect whether the battery is abnormal or not, the period T1 can be set to a small value such as 20 min or 30 min, while the other period T2 can be set to a large value such as 50 min or 70 min. The threshold for the other period T2 is n (usually less than or equal to 2/3 of the total duration of battery discharge). Further, the period T1 = 30 min and T2 = 50 min can be set, the corresponding reference value a = 8 mV is obtained based on the battery model number and the period T1, and the corresponding reference value a = 8 mV is obtained based on the battery model number and the duration T2. The reference value b = 12 mV to be used is obtained.

When the terminal device is charged and discharged for the first time, 40 minutes after the terminal device is fully charged, the battery abnormality starts to be detected, the second acquisition module 120 records the voltage of the battery at this point as V40 min, and the terminal device records When 70 minutes have passed since the battery was fully charged, the second acquisition module 120 records the voltage of the battery at this time as V70 min, and can calculate that the voltage drop V1 = V40min-V70min in the period T1. After that, when 120 minutes have passed since the terminal device was completely charged, the second acquisition module 120 records the voltage of the battery at this time as V120 min, and can calculate that the voltage drop K1 = V40min-V120min in the period T2. Finally, the safety monitoring module 330 determines whether the voltage drop V1 in the period T1 is larger than the reference value a, and determines whether the voltage drop K1 in the period T2 is larger than the reference value b. If the voltage drop V1 in the period T1 is larger than the reference value a, or the voltage drop K1 in the period T2 is larger than the reference value b, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

According to one embodiment of the present invention, when the number of times the terminal device is charged is greater than the preset number of times, the safety monitoring module 330 is further preset by the second acquisition module 320 before the current charge. After a number of charges, a battery voltage drop for each period is acquired, a preset number of battery voltage drops corresponding to each period is obtained, and a preset number of battery voltages corresponding to each period are obtained. By calculating the average value of the drop, the reference value corresponding to each period is obtained, and the difference between the voltage drop of the battery in each period after the current charge and the corresponding reference value is set in advance. Determining if it is greater than the threshold and if the difference between the battery voltage drop for any one period after current charging and the corresponding reference value is greater than the corresponding preset threshold, the battery is abnormal. It is used to determine that.

The preset thresholds for different types of batteries (different capacities, materials, etc.) are different, and even for the same type of batteries, the preset thresholds vary depending on the period, specifically, tested by experiment. Can be acquired in advance.

That is, in the embodiment of the present invention, the average voltage drop of a plurality of continuous charges and discharges can be selected and used as the reference value A, that is, A = (Vx + 1 + Vx + 2 + ... + Vx + i) / i, i. Indicates the number of charge / discharge cycles, Vx + 1 indicates the voltage drop acquired in the first charge / discharge process, Vx + 2 indicates the voltage drop acquired in the second charge / discharge process, and Vx + i indicates the voltage drop acquired in the i-th charge / discharge process. Shows the voltage drop. Next, the difference between the voltage drop Vx + i + 1 in the (i + 1) th charge / discharge process and the reference value A is calculated and recorded as ΔV. Here, ΔV = Vx + i + 1-A, and it is determined whether or not ΔV is larger than the corresponding preset threshold value. If ΔV is greater than the corresponding preset threshold, the battery is determined to be abnormal.

Specifically, as an example, it is possible to determine whether or not the battery is abnormal by selecting a voltage drop for one period of the battery voltage curve each time the terminal device is charged or discharged. ..

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, since the number of times the terminal device has been charged has already reached a certain number, the reference value A is dynamically updated. That is, at this time, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 acquired by the second acquisition module 120, and V6, V7 ,. .. .. , V10 are the 6th and 7th, respectively. .. .. The tenth charge / discharge process period T1 is a voltage drop. Next, the safety monitoring module 330 compares the voltage drop V11 in the eleventh charge / discharge process with the average voltage drop in the previous five charge / discharge processes. That is, first, the difference ΔV between the voltage drop V11 in the eleventh charge / discharge process and the reference value A is calculated, ΔV = V11−A, and ΔV is larger than the corresponding preset threshold value m. Judge whether or not. If ΔV is greater than the corresponding preset threshold m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period and adopting a dynamic algorithm when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and the potential due to the battery abnormality. Can be immediately reminded and repaired to avoid any safety hazards.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the 11th time, the number of times the terminal device has been charged has already reached a certain number of times, so that the reference value A corresponding to the period T1 and the period All the reference values B corresponding to T2 are dynamically updated, that is, the reference value A = (V6 + V7 + V8 + V9 + V10) / 5 acquired by the second acquisition module 120 at this time, and V6, V7 ,. .. .. , V10 are the 6th and 7th terminals of the terminal device, respectively. .. .. It is the voltage drop of T1 during the tenth charge / discharge process, the reference value B = (K6 + K7 + K8 + K9 + K10) / 5, and K6, K7 ,. .. .. , K10 are the 6th and 7th terminals of the terminal device, respectively. .. .. It is the voltage drop of T2 during the tenth charge / discharge process. Next, the safety monitoring module 330 compares the voltage drop V11 of the eleventh charge / discharge process period T1 with the reference value A, and sets the voltage drop K11 and the reference value B of the eleventh charge / discharge process period T2. Compare. That is, first, the difference ΔV between the voltage drop V11 of the eleventh charge / discharge process period T1 and the reference value A is calculated, ΔV = V11-A, and the eleventh charge / discharge process period T2. The difference ΔK between the voltage drop K11 and the reference value B is calculated, and ΔK = K11-B, and it is determined whether or not ΔV is larger than the preset threshold value m corresponding to the period T1. And, it is determined whether or not ΔK is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state and adopting a dynamic algorithm, it is possible to monitor whether the battery is abnormal or not, and due to the battery abnormality. It can be immediately reminded and repaired to avoid potential safety hazards. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring system of the terminal device according to the present invention can monitor the abnormality of the battery by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when the number of times the terminal device is charged is less than the preset number of times, the safety monitoring module 330 is further charged by the second acquisition module 320 to each charge before the current charge. After that, by acquiring the battery voltage drop for each period, acquiring the voltage drops of the multiple batteries corresponding to each period, and calculating the average value of the voltage drops of the multiple batteries corresponding to each period, each Obtain the reference value corresponding to the period, determine whether the difference between the battery voltage drop and the corresponding reference value for each period after the current charge is greater than the corresponding preset threshold, and now If the difference between the voltage drop of the battery for any one period after charging and the corresponding reference value is greater than the corresponding preset threshold, it is used to determine that the battery is abnormal.

That is, in the embodiment of the present invention, when the number of times of charging the terminal device is smaller than the preset number of times (for example, 5 times), the average voltage drop of all the previous charge / discharge processes is directly set as the reference value A. , Determine if the battery is abnormal.

Specifically, as an example, each time the terminal device is charged or discharged, a voltage drop for one period of the battery voltage curve can be selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th minute after the terminal device is fully charged can be selected as the start point for calculating the voltage drop, the period T1 = 30 min, and the preset number of times i. = 5 is set, and the corresponding preset threshold m = 5 mV is acquired based on the model number of the battery and the period T1. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 acquired by the second acquisition module 120, and V1, V2, V3. Is the voltage drop of the period T1 of the first, second, and third charge / discharge processes of the terminal device, respectively. Next, the safety monitoring module 330 compares the voltage drop V4 in the fourth charge / discharge process with the average voltage drop in the previous three charge / discharge processes, and the voltage drop V4 in the fourth charge / discharge process and the reference value. The difference ΔV with A is calculated, ΔV = V4-A, and it is determined whether or not ΔV is larger than the preset threshold m. When ΔV is larger than the preset threshold value m, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for one period when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired.

As another example, it is possible to determine whether the battery is abnormal by selecting a voltage drop for a plurality of periods of the battery voltage curve each time the terminal device is charged or discharged. Hereinafter, it will be described in detail that the voltage drop in two periods of the battery voltage curve is selected to determine whether or not the battery is abnormal.

For example, each time the terminal device is charged or discharged, the 40th min after the terminal device is fully charged can be selected as the start time for calculating the voltage drop, and the period T1 = 30 min, the period T2 = 50 min, in advance. The set number of times i = 5 is set, the corresponding preset threshold m = 5 mV is acquired based on the battery model number and period T1, and the corresponding preset value is set based on the battery model number and period T2. The threshold value n = 10 mV is acquired. When detecting the safety of the battery, assuming that the terminal device is currently charged and discharged for the fourth time, the reference value A = (V1 + V2 + V3) / 3 acquired by the second acquisition module 120 at this time, and V1, V2 and V3 are voltage drops of the period T1 of the first, second and third charge / discharge processes of the terminal device, respectively, and the reference value B = (K1 + K2 + K3) / 3, and K1, K2 and K3 are respectively. This is the voltage drop of T2 during the first, second, and third charge / discharge processes of the terminal device. Next, the safety monitoring module 330 compares the voltage drop V4 of the fourth charge / discharge process period T1 with the reference value A, and sets the voltage drop K4 and the reference value B of the fourth charge / discharge process period T2. Compare. That is, first, the difference ΔV between the voltage drop V4 of the fourth charge / discharge process period T1 and the reference value A is calculated, ΔV = V4-A, and ΔV is preset corresponding to the period T1. It is determined whether or not it is larger than the threshold value m, and the difference ΔK between the voltage drop K4 of the fourth charge / discharge process period T2 and the reference value B is calculated, and ΔK = K4-B. , ΔK is determined whether or not is larger than the preset threshold value n corresponding to the period T2. If ΔV is greater than the preset threshold m corresponding to the period T1 or ΔK is greater than the preset threshold n corresponding to the period T2, it is determined that the battery is abnormal. Therefore, by monitoring the voltage drop for multiple periods when the battery is in a stable state, it is possible to monitor whether the battery is abnormal or not, and there is a potential safety hazard due to the battery abnormality. To avoid it, it can be immediately reminded and repaired. Also, compared to monitoring whether the battery is abnormal by monitoring the voltage drop in one period, monitoring whether the battery is abnormal by monitoring the voltage drop in a plurality of periods. This can be determined more accurately, and the inaccuracy of detection due to external interference can be effectively avoided.

The battery safety monitoring system of the terminal device according to the present invention can monitor the abnormality of the battery by monitoring the voltage drop of the battery for at least one period when the battery is in a stable state, and can monitor the abnormality of the battery. Immediate reminders and repairs can be made to avoid potential safety hazards due to anomalies.

Further, according to one embodiment of the present invention, when it is determined that the battery is abnormal, the safety monitoring module 330 controls the terminal device or the adapter to transmit a reminder message indicating the abnormality of the battery.

For example, if a battery is currently detected to be abnormal, the user needs to be notified. As an example, as shown in FIG. 3, the safety monitoring module 330 is a terminal device (mobile phone, etc.) "Battery safety message: Customer, the battery is currently in an abnormal state. Use it safely. You can remind users with the reminder message "Thank you for going to the *** Customer Service Outlet for inspection and repair!" As another example, when reminding the user with the reminder message shown in FIG. 3, the safety monitoring module 330 can further remind the user by blinking the indicator lamp of the terminal device, for example, controlling the indicator lamp to be red. It emits light and blinks frequently. As yet another example, the safety monitoring module 330 can be reminded to the user via the voice function of the terminal device.

Generally, upon receiving the above reminder message, the user goes to the customer service outlet for inspection and repair. However, some users may not be aware of the seriousness of the problem when they receive the above reminder message. Therefore, the reminder message may be ignored and the terminal device may continue to be used normally. In this case, the safety monitoring module 330 can notify the user many times. For example, the user can be notified at least three times. After many notifications, the user can limit some functionality of the terminal device if it still does not handle the problem.

In the embodiment of the present invention, an indicator lamp, a voice module, a display screen, etc. can be installed on the adapter, and when the battery is abnormal, the safety monitoring module 330 sends a reminder message by the adapter to notify the user. As for the specific reminding method, the reminding method of the terminal device can be referred to, which will not be described in detail here.

According to one embodiment of the present invention, the safety monitoring module 330 limits the corresponding functions of the terminal device when it is determined that the battery is abnormal.

That is, the abnormal grade can be determined according to the magnitude of the voltage drop of the battery. For example, the greater the voltage drop in the battery, the more severe the battery anomaly (eg, the more severe the damage and aging). Therefore, battery anomalies are divided into general grades, relatively serious grades, serious grades, and complete failure grades according to the battery voltage drop, and the corresponding functions of the terminal device according to the different anomalous grades. Can be restricted.

For example, in general, the lower the power consumption of a terminal device application, the less heat is generated during battery use. For example, if video chat is not performed and only the instant messaging (IM) application is launched, the battery power consumption is low and the battery heat generation is low, so the possibility of battery hazard is low. However, when the power consumption of an application such as watching a video or playing a mobile game is high, the power consumption of the battery is high and the amount of heat generated by the battery is large, so that a safety accident is likely to occur. Therefore, when it is determined that the battery is abnormal, the safety monitoring module 330 prohibits the use of high power consumption applications such as video applications and game applications if the abnormal grade is a general grade. When the abnormal grade is a relatively serious grade or a serious grade, the safety monitoring module 330 prohibits the entire system from booting and displays on the display screen of the terminal device in order to prevent the occurrence of a safety accident. The message "Battery poses a potential safety hazard and prohibits system booting. Please go to *** Customer Service Outlet for inspection and repair. Thank you for your cooperation!" Remind the user by displaying. If the anomaly grade is a complete failure grade, the battery will be disabled and the safety monitoring module 330 will control the system to power off and will not be able to boot.

In addition, heat can also be generated during the battery charging process, especially in the fast charging state, which will generate more heat in a short period of time, so if the battery is determined to be abnormal, the safety monitoring module 330 will generate more heat. , Also prohibits quick charging of the battery. In more serious situations, even charging the battery is prohibited to prevent the occurrence of safety accidents, and the display screen of the terminal device says "Battery charging is prohibited due to battery damage. *** Remind users by displaying the message "Please go to our Customer Service Outlet for inspection and repair. Thank you for your cooperation!"

According to the battery safety monitoring system of the terminal device according to the embodiment of the present invention, the battery voltage curve is obtained by acquiring the battery voltage in real time when the battery of the terminal device is in a stable state by the first acquisition module. The second acquisition module acquires the battery voltage drop for at least one period based on the battery voltage curve, and the safety monitoring module acquires the battery voltage drop for at least one period. To determine if is abnormal. The present invention can monitor battery anomalies by monitoring the battery voltage drop for at least one period when the battery is in a stable state, and poses a potential safety hazard due to battery anomalies. To avoid it, it can be immediately reminded and repaired.

FIG. 7 is a block diagram of a terminal device according to another embodiment of the present invention. As shown in FIG. 7, the terminal device 10 includes the battery safety monitoring system 300 of the terminal device described above.

According to the terminal device according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state. Anomalies can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

FIG. 8 is a block diagram of an adapter according to another embodiment of the present invention. As shown in FIG. 8, the adapter 20 includes the battery safety monitoring system 300 of the terminal device described above.

According to the adapter according to the embodiment of the present invention, the battery safety monitoring system of the terminal device described above monitors the voltage drop of the battery for at least one period when the battery is in a stable state, thereby causing a battery abnormality. Can be monitored and can be immediately reminded and repaired to avoid potential safety hazards due to battery anomalies.

Reference terms such as "one example", "some examples", "exemplification", "concrete example", or "some examples" referred to herein are examples or examples. It means that the specific features, structures, materials, or properties described in combination are included in at least one embodiment or example of the present invention. In the present specification, the exemplary description of the above-mentioned terms is not limited to referring to the same embodiment or example. The particular features, structures, materials, or properties described can be adequately combined in any one or more examples or examples. Further, as long as there is no contradiction, those skilled in the art can combine different examples or examples described herein and features of different examples or examples.

In addition, terms such as "first" and "second" are used merely to explain and either express or imply relative importance or imply the number of technical features referred to herein. It should not be understood as a thing. Thus, features restricted by terms such as "first", "second" express or imply that they include at least one such feature. In the description of the present invention, unless otherwise specified, "plurality" refers to "at least two" such as two or three.

Any process or method described in a flowchart or other method can be understood to include one or more modules, segments, or portions of executable program code to implement a custom logic function or process step. In addition, the scope of preferred embodiments of the present invention includes other embodiments and may be performed in a different order than shown or described. For example, one of ordinary skill in the art should understand that the functions are performed approximately simultaneously or in reverse order.

The logic and / or steps shown in the flowchart or described in other ways can be considered, for example, as a sequence list of executable programs for implementing logic functions, which can be implemented in computer readable media. To be used by an instruction execution system, device, or device (a computer-based system, a system including a processor, or an instruction execution system, a system that acquires an instruction from the device or device and executes an instruction), or these. Use a combination of instruction execution systems, devices, or devices. As used herein, "computer-readable medium" includes and stores programs for use by instruction execution systems, devices, and devices, or for use in combination of these instruction execution systems, devices, and devices. A device capable of communicating, transmitting, or propagating. Specific examples (not exhaustive) of computer-readable media are electrical connections (electronic devices) containing one or more wires, portable computer disk boxes (magnetic devices), random access memory (RAM), read-only memory. (ROM), erasable programmable read-only memory (EPROM or flash memory), fiber optic devices, compact disk read-only memory (CDROM). In addition, the computer-readable medium can be paper on which the program can be printed, or other suitable medium. For example, perform an optical scan on paper or other medium, then compile and interpret the program, or process it in another way when needed to obtain the program electronically, and then The program is stored in the computer's memory.

It should be understood that each part of the invention may be realized by hardware, software, firmware, or a combination thereof. In the embodiments described above, the plurality of steps or methods are implemented by software or firmware stored in memory and executed by an appropriate instruction execution system. For example, if implemented by hardware, as in another embodiment, it may be implemented from any one or a combination of the following known in the art: a logic function for a data signal. Discrete logic circuit (discrete logic circuit), application specific integrated circuit (ASIC), programmable gate array (programmable gate array, PGA), programmable gate array (PGA) field , FPGA) etc.

It should be understood by those skilled in the art that all or part of the steps of the method embodiments described above can be completed by instructing the relevant hardware via a program. The program is stored on a computer-readable storage medium, and when the program is executed, it comprises one or a combination of the steps of the method embodiment.

Further, each functional unit of each embodiment according to the present invention may be integrated into one processing module, each unit may physically exist independently, and two or more units may be integrated into one module. It may be integrated. The above integrated module is executed by hardware or software. If the above integrated module is implemented in a software functional unit and sold or used as an independent product, the software may be stored on a computer-readable storage medium.

The storage medium described above can be a ROM, a magnetic disk, an optical disk, or the like. Although the examples of the present invention have been described above, the above-described examples are exemplary and should not be understood as limiting the present invention, and those skilled in the art will be within the scope of the present invention. , The embodiments described above can be modified, modified, replaced and modified.

In the description of the present invention, "center", "vertical", "horizontal", "length", "width", "thickness", "top", "bottom", "front", "rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", "Radiation" The directional relationship or positional relationship indicated by terms such as "direction" and "circumferential direction" is a directional relationship or positional relationship based on the attached drawings, and is for conveniently explaining and simplifying the present invention. Or, it does not explicitly or imply that the components always have a particular direction, or are constructed and manipulated in a particular direction, and should not be construed as limiting the invention.

In the present invention, terms such as "install", "join", "connect", and "fix" should be understood in a broader sense, unless expressly defined and limited. For example, unless otherwise specified, they may be fixedly connected, detachably connected, integrated, mechanically connected, or electrically connected. , Can be directly connected, may be indirectly connected via a medium, can be a communication between two components, or can be an interaction relationship between two components. .. Those skilled in the art may understand the specific meanings of the above terms in the present invention, depending on the particular circumstances.

In the present invention, unless there is a clear provision and limitation, the fact that the first feature is "above" or "below" the second feature means that the first feature and the second feature are in direct contact or the first. One feature and the second feature mean indirect contact through the medium. The fact that the first feature is "above", "above", and "top" of the second feature means that the first feature is directly above or diagonally above the second feature, or just the horizontal height of the first feature. Means that is higher than the horizontal height of the second feature. The fact that the first feature is "below", "below", and "bottom surface" of the second feature means that the first feature is directly below or diagonally below the second feature, or just the horizontal height of the first feature. It means that it is lower than the horizontal height of the second feature.

Although the examples of the present invention have been described above, the above-described examples are exemplary and should not be understood as limiting the present invention, and those skilled in the art will be within the scope of the present invention. , The embodiments described above can be modified, modified, replaced and modified.

Claims (19)

It is a battery safety monitoring method for terminal devices.
A step of generating a battery voltage curve by acquiring the voltage of the battery in real time when the battery of the terminal device is in a stable state.
A step of obtaining a voltage drop of the battery for at least one period based on the battery voltage curve.
A step of determining whether or not the battery is abnormal based on the voltage drop of the battery for at least one period.
A method for monitoring battery safety of a terminal device, which comprises. When the battery is fully charged and the terminal device still retains the charging connection state with the adapter, it determines that the battery is in a stable state.
The method for monitoring battery safety of a terminal device according to claim 1, wherein the battery safety is monitored. When the terminal device is charged for the first time, determining whether the battery is abnormal or not based on the voltage drop of the battery for at least one period can be determined.
Obtaining the standard value corresponding to each period,
Comparing the voltage drop of the battery with the corresponding reference value for each period,
If the voltage drop of the battery during any one period is greater than the corresponding reference value, it is determined that the battery is abnormal.
To prepare
The method for monitoring battery safety of a terminal device according to claim 1 or 2, wherein the battery safety is monitored. When the number of times the terminal device is charged is greater than the preset number of times, it is possible to determine whether or not the battery is abnormal based on the voltage drop of the battery for at least one period.
Acquiring the voltage drop of the battery for each period after a preset number of charges before the current charging to obtain the voltage drop of the preset number of batteries corresponding to each period.
Obtaining a reference value corresponding to each period by calculating the average value of the voltage drops of the preset number of the batteries corresponding to each period.
Determining if the difference between the battery voltage drop and the corresponding reference value for each period after current charging is greater than the corresponding preset threshold.
If the difference between the voltage drop of the battery and the corresponding reference value for any one period after the current charge is greater than the corresponding preset threshold, then the battery is determined to be abnormal.
To prepare
The method for monitoring battery safety of a terminal device according to claim 1 or 2, wherein the battery safety is monitored. When the number of times the terminal device is charged is less than the preset number of times, it is possible to determine whether or not the battery is abnormal based on the voltage drop of the battery for at least one period.
To obtain the voltage drop of the battery for each period after each charge before the current charge, and to obtain the voltage drop of a plurality of the batteries corresponding to each period.
To obtain a reference value corresponding to each period by calculating the average value of the voltage drops of the plurality of batteries corresponding to each period.
Determining if the difference between the battery voltage drop and the corresponding reference value for each period after current charging is greater than the corresponding preset threshold.
If the difference between the voltage drop of the battery and the corresponding reference value for any one period after the current charge is greater than the corresponding preset threshold, then the battery is determined to be abnormal.
To prepare
The method for monitoring battery safety of a terminal device according to claim 1 or 2, wherein the battery safety is monitored. If it is determined that the battery is abnormal, the terminal device or the adapter sends a reminder message indicating the abnormality of the battery.
The method for monitoring battery safety of a terminal device according to any one of claims 1 to 5, wherein the method is characterized by that. If it is determined that the battery is abnormal, the corresponding function of the terminal device is restricted.
The method for monitoring battery safety of a terminal device according to any one of claims 1 to 5, wherein the method is characterized by that. A non-temporary computer-readable storage medium that stores a computer program, and when the program is executed by a processor, the battery safety monitoring method of the terminal device according to any one of claims 1 to 7. Run,
A non-temporary computer-readable storage medium characterized by that. It ’s a terminal device,
Claims 1 to 8 include a memory, a processor, and a battery safety monitoring program that is stored in the memory and can be executed by the processor, and the battery safety monitoring program of the terminal device is executed by the processor. To implement the steps of the battery safety monitoring method described in any one of the above,
A terminal device characterized by that. It ’s an adapter
When a charging connection is established between the adapter and the terminal device, bidirectional communication is executed between the adapter and the terminal device.
The adapter comprises a memory, a processor, and a battery safety monitoring program that is stored in the memory and can be executed by the processor, and claims that the battery safety monitoring program of the adapter is executed by the processor. Realize the steps of the battery safety monitoring method described in any one of 1 to 8.
An adapter that features that. It is a battery safety monitoring system for terminal devices.
A first acquisition module that generates a battery voltage curve by acquiring the voltage of the battery in real time when the battery of the terminal device is in a stable state.
A second acquisition module that acquires the voltage drop of the battery for at least one period based on the battery voltage curve.
A safety monitoring module that determines whether the battery is abnormal based on the voltage drop of the battery for at least one period.
To prepare
A battery safety monitoring system for terminal devices that features this. When the battery is fully charged and the terminal device still maintains a charging connection with the adapter, the safety monitoring module determines that the battery is in a stable state.
11. The battery safety monitoring system for a terminal device according to claim 11. When the terminal device is charged for the first time, the safety monitoring module further
Obtain the standard value corresponding to each period,
Compare the voltage drop of the battery with the corresponding reference value for each period,
It is used to determine that the battery is abnormal if the voltage drop of the battery during any one period is greater than the corresponding reference value.
The battery safety monitoring system for the terminal device according to claim 11 or 12, characterized in that. If the terminal device has been charged more than a preset number of times, the safety monitoring module further
After charging a preset number of times before the current charging, the second acquisition module acquires the voltage drop of the battery in each period, and the voltage drop of the preset number of batteries corresponding to each period is obtained. Earn and
By calculating the average value of the voltage drops of the preset number of the batteries corresponding to each period, the reference value corresponding to each period is obtained.
Determine if the difference between the voltage drop of the battery and the corresponding reference value for each period after current charging is greater than the corresponding preset threshold.
Used to determine that the battery is abnormal if the difference between the voltage drop of the battery and the corresponding reference value for any one period after the current charge is greater than the corresponding preset threshold. Be,
The battery safety monitoring system for the terminal device according to claim 11 or 12, characterized in that. If the number of times the terminal device has been charged is less than the preset number of times, the safety monitoring module further
After each charge before the current charge, the second acquisition module acquires the voltage drop of the battery for each period to obtain the voltage drops of the plurality of batteries corresponding to each period;
By calculating the average value of the voltage drops of the plurality of batteries corresponding to each period, the reference value corresponding to each period is obtained;
Determine if the difference between the battery voltage drop and the corresponding reference value for each period after the current charge is greater than the corresponding preset threshold;
Used to determine that the battery is abnormal if the difference between the voltage drop of the battery and the corresponding reference value for any one period after the current charge is greater than the corresponding preset threshold. Be,
The battery safety monitoring system for the terminal device according to claim 11 or 12, characterized in that. When the safety monitoring module determines that the battery is abnormal, the safety monitoring module controls the terminal device or the adapter to send a reminder message indicating the battery abnormality.
The battery safety monitoring system for a terminal device according to any one of claims 11 to 15, characterized in that. If the battery is determined to be abnormal, the safety monitoring module limits the corresponding functions of the terminal device.
The battery safety monitoring system for a terminal device according to any one of claims 11 to 15, characterized in that. A terminal device comprising the battery safety monitoring system for the terminal device according to any one of claims 11 to 17. An adaptor comprising the battery safety monitoring system for the terminal device according to any one of claims 11 to 17.

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